View Full Version : Astrophysics
- Dark Matter exists!
- What is singularity????? [Black Hole ]
- Gamma ray map of the galaxy completed by NASA
- JDEM/Beyond Einstein, is it still alive?
- Basic question about sun's mass & orbit of planets
- Outer Planet Rings
- Rotations of Earth and other Rigid Bodies
- Hubble+/- 4.3%, is the constant "constant"?
- A way to see dark matter annihilation (Pamela: cosmic positrons/antiprotons)
- Deorbiting q, low speed reentry?
- Sky map and dark energy
- Pliers, pulsars and extreme physics
- Our solar system is special
- orbit in space (extrasolar planets)
- Stable Planetary Distances?
- Slower rotation curves at centre
- What causes space time to come into existence?
- Hypothetical question
- Utraviolet Telescope for Blazar Emission Lines?
- SDSS photometry
- Radius of a star as a function of wavelength
- Lenticular Galaxy - Formula for Probable Location of Stars
- accelerometer xyz anlges to ra/dec
- Krypton, Selenium, and Xenon in planetary nebulae
- Spin angular momentum of black hole
- Paper/Help three body problem
- Improving a Galaxy Generation algorithm
- Ruplusive Force or Lost Of Mass
- Central Pressure for a star
- Galaxy rotation and Kepler law
- my orbitz problem
- How constant are constants? - ice skating
- Question about Jupiter atmosphere
- Pictures from Space
- Pictures from Space
- Dark Matter Halo + Virial theorem Q.
- why the excess of young stars close to Milky's supermassive BH?
- Can dark matter be just a cloud of protons?
- A Blackhole Paradox
- Black Holes
- Big-Bang nucleosynthesis (BBN)
- P & Pdot
- Traversing the milky way galaxy! when???
- merger of Neutron Stars and Black Holes
- A question about thrust VS mass
- Geosynchronous orbit
- Collision Behavior in a Gas
- How much do we know about gravity?
- Atmospheric Gamma Ray Interactions
- Perihelion Pass Dates?
- Kustaanheimo-Stiefel transformation ?
- Book
- What is a sky cut?
- What is Hanny's Voorwerp?
- Fitting Highly Non-linear Data
- Force
- Reconstruction Primordial Fluctuations from Temperature Anisotropy
- type1a supernovae as evidence for an accelerating universe
- Falling time:
- Blackholes, Jets and Dark Matter.
- Empty universe except for three indentical planets
- Keplers Equation
- How to measure the tangential component of velocity of receding starsor quasars?
- How to measure the tangential component of velocity of receding starsor quasars?
- Curvature
- Is such an orbit possible?
- Chandresekhar Limit
- What if Mars Had Been Closer and Venus Farther?
- gravity and coordinate acceleration
- What happens when an anitmatter blackhole collides with a matter blackhole?
- Glast In Orbit!
- what do I use to determine rotational speed of solar nebula?
- lunar spectrum
- semimajor axis
- Black Hole Shapes
- Quasars please explain
- Blackhole
- Black Holes, how much energy do they give off?
- Kruskal-Szekeres coordinates
- Derivation of Escape Velocity Inconsistency
- Can Black Holes Wobble?
- The essence of light.
- sky in a Galaxy.
- Radial Velocity Data fitting
- When Will Earth Be Tidelocked To The Sun?
- White dwarf
- Ideas for A Class Project
- Vapor Pressure Laws
- Terraforming Mars
- Expansion of the Universe
- temperature of a electron?
- Sudbury Neutrino Observatory
- Mass of the sun
- How can black holes even exist?
- Anisotropy of dispersions
- Earth's interior heat vs Gravity
- Pioneer anomaly
- Quantum entanglement and black holes
- fermions and spin
- Reading my first Astrophys paper
- Pioneer 10 and 11 anomylous acceleration
- Help with HEALPix
- Orbit
- Net Charge of Planets and Stars
- low mass stars
- Solar Inflow events
- Superwind phase in stellar evolution
- conservation of energy
- convective cores - why?
- Can dark matter explain the flyby anomalies?
- Astro phys so short of input
- Gravity probe B scores F
- Missing matter found in deep space
- Gaussfit
- stellar evolution
- gravitational acceleration for a rotating torus
- life of gamma ray particle
- Need quick fact check, please.
- astronomy exercises
- Dark Matter and Atoms
- Unique Roche limit and Saturn's rings
- Black Hole Questions
- space-like intervals and the ergoregion
- Light
- Mass and Traveling at the Speed of Light
- Black holes and magnetic fields?
- Changing mass of the sun
- Accelerating Universe,rate Of Acc Data Needed
- Number density of earth
- From polar to heliocentric ecliptic coordinates
- Solar system axsis
- Magnetism of planets
- Confirmation of any water on the moon?
- position of photon sphere
- Metric of a curved sphere
- centripetal forces and gravity
- Online books on Astrophysics.
- WMAP cold spot and void in the universe
- Spectral index
- Artificial gravity
- MOND vs DM
- Baryon Asymmetry
- Why so little neutrinos?
- gravity verses electromagnetic attraction
- Mass-Luminosity relationship
- Dark Energy and EM/G unification.
- Rotational Motion of Celestial Body
- So you discover the dark matter particle.... Now what?
- Laws of physics and blackhole
- Ligo
- Cauchy horizon in a Kerr rotating black hole
- Ultimate source of energy on Io
- Ejecta from neutron-star coalescences
- Dwarph Speroidals (dSphs)
- Tolman-Oppenheimer-Volkoff equation...
- Negative acceleration....
- Galactic Coriolis Effect
- One Question About Black Holes
- Gravitationally bound, ionized cloud of hydrogen
- Blackhole temeperature and bigbang
- Σ Black Hole Masses in Universe
- angular momentum of an oblate spheroid
- Rt
- Solar Corona Luminosity
- outside the universe
- wormhole physics
- Hawking radiation & Information loss
- rotational kinetic energy
- Black holes as cold as Inferno?
- de Broglie equation and black holes
- Awesome illustrated map of Apollo landing site
- Moon "rotation"
- Galactic Rotation Curve?
- Moon without Earth
- snowplow
- accretion disk/black hole/gas jets
- Sun mass loss
- do blackholes disappear
- Energy output of Sun?
- Dark energy @ standard rulers
- Stability of the Solar System
- Orbital speed of stars within galaxies?
- Minimum value of g for blackhole
- black holes, frame dragging and the effect on gravity
- Black hole vs. Black hole, who wins?
- Help for High Energy Astrophysics
- light and blackhole
- From polar coordinates to heliocentric ecliptic coordinates
- Event at Aplao, Peru Feb 2nd 2004
- Moon preservation
- Please Help. Radio Spectroscopy -> Finding the doppler shift in a graph
- Just a simple explanation please
- A question regarding the orbit of material in a galaxy such as ours...
- Can two planets inhabit the same orbit?
- Orbital Mechanics Quandary
- Orbits
- magnitudes of stars
- Quasers
- antiblackholes
- Could Dark Matter be mass in EM fields?
- When Stars Collide
- Particle-Antiparticle pairs
- Black Holes
- HR diagram problem help
- Mass Function
- Hawkins Paradox
- monochromatic flux expression?
- gravity for a stellar black hole
- The evidence to date
- Will two stars of the exact same mass and chemical composition undergo identical...
- How new stars are borne
- Black Hole Evaporation
- Trajectory of a Test Particle in a Semidetached Binary
- how does black hole evaporation end?
- Gravity as consequence of universe expansion
- Time dilation
- Mass-Radius relation of a Neutron star
- The spectrum of reflected light from a planet question.
- Equatorial Bulge
- Fun Special Relativity Question
- Solid hydrogen and astrophysic
- orbit anomalies
- Evidence for dark matter
- Synthetic Black Hole Event Horizon Created in UK Laboratory
- Solar Wind
- Need A little Help With Optical Depth
- human in outer space without space suit
- The Biggest Black Hole Discovered?
- Information in a gamma ray
- Dark Matter... ?
- Intergalactic Gravity
- neutron degenerate matter as dark matter
- Big Rip
- Cloud Planet
- Schwarzschild radius
- Supernova
- Dark matter and the Standard Model
- Applying Runge-Kutta(RK4) method to planetary velocity
- Crystalline Diamond Maximum Mass...
- dimensional analysis on Luminosity
- Changing velocity
- Collision of two Black holes
- Extra-galactic Meteror?
- Orbit Semimajor Axis and Eccentricity after increasing V
- Dark Matter
- Exo Planets
- my question about string theory
- help finding Kip Thorne web course
- A few questions.
- Neutron degeneracy pressure
- Pulled apart?
- What is the fabric of the universe?
- Neutron star mass
- Galaxy rotation
- Virial Theorem
- mirroring sun with parabolic dish
- Black holes dilemas
- New and Improved: Elliptical Transfer Orbits determination procedure.
- Supermassive loop holes
- Black Hole Tidal Forces
- Gliese 581c/d and their Red Sun?
- magnetosphere questions
- Throwing an object into orbit
- Brownian movement in the quantum scale.
- Planetesimal of comet material at Lagrange Points of overlaping 'Ort' clouds?
- Expanding Universe
- radio astronomy
- Why do gas planets not collapse?
- how do i find out how much energy a 20solar M BH would radiate given that...
- weins displacement law
- The end of the universe!
- Kepler's Equation to calculate transfer time
- Type of material of black holes
- Black Hole Temperature and Entropy
- If i had a black hole of 20 solar masses, how much energy would it radiate?
- what is stefan's constant?
- what is the average mass a black hole consumes
- How can you find out the amount of hawking radiation a black hole exhibits?
- centre of mass of universe
- The puzzling presence of DIBs
- Disks and spheres.
- Our Galaxy Spin
- GRBs and Supernova
- Thermodynamics and black holes.
- nothingness is unstable?
- High School Astrophysics?
- Are black holes cold?
- mass-to-light-ratio and dark matter in galaxy
- Can someone tell me if GP-B has results about GR, one way or the other?
- Tully-Fisher relation : Help !
- Would you agree with notion?
- Exoplanet Techniques
- The x-wind origin of chondrules
- virtual particles and black holes
- question on black hole
- Lagrangian points anyone?
- Black holes
- Detecting Black Hole accretion disc
- Super Mario Galaxy physics
- Pop. I object
- Gravitational Expansion -- NOT
- Satalite Question:
- creating oxygen(co2) out Of hydrogen
- Occultation
- temperature of a molecule in a galaxy
- spectrum of flux for a synchrontron source
- estimating relative distances for star clusters
- interstellar extinction
- The Color of Galaxies
- Gravitational Expansion & Flat Universe
- Speed of light
- do we know where supermassive black holes come from?
- space time travel theory
- worm and black holes
- equation for how much an object curves space-time
- Particles from Blackhole
- Big Bang Question
- Luminosity-Metallicity Relations in Spiral Galaxies.
- Astrophysics?
- Duration of AGB
- how big can a body get (size wize) before it collapses onto itslef?
- Position as function of time - satellite in elliptical orbit (spherical coordinates)
- Hill Sphere Question
- A paradox ?
- An way to visualize dark matters effects on space-time?
- Simple Black hole question
- Types of supernovae
- Hill Sphere Derivation?
- wurmholes
- Weight dependent on planet size and rotation speed?
- Data on galaxies -good references ?
- Flux of Solar wind
- Fission in Sun
- Dark Matter and Dark Energy
- Highest Energy Cosmic Rays Linked to Violent Black Holes
- mass fraction?
- Black Holes and wormholes
- Missing Matter?
- local star formation rate
- spiral galaxies -
- Extrasolar / exosolar planets
- Elliptical orbits of planets
- How Much difference b2in theoritical and experimental astrophysics?
- How many exoplanets with an atmospheric oxygen signature would be necessary?
- Cause of Quasar Wind
- Neutrino Telescopes may have nothing to see
- Nariai universes
- Risk from black holes
- Artificial stars
- Temperature of the surface of a satellite?
- A New Planet
- Another black hole question
- question on gravitational lensing
- Black hole question
- Black holes
- Gravitational lensing and Dark matter
- Question on Mercury
- Hubble Parameter
- Electromagnetic Radiation
- recent mass estimates for Milky and the Local Group
- Bang RIP, Bang RIP
- Light-gathering abilities?
- Sun has a twin!
- Speed of Gravity
- Numerical Fourieri Analysis of a GRB light curve
- Is light really affected by gravity?
- Limitation to mass of currently forming stars?
- Speed of a Gamma Ray Burst
- Infinity in the Universe
- Can I be a black hole?
- Challenging question
- Question on Atomic Principals
- Astrophysics FITS format
- Very dumb question
- How normal is the sun?
- Oxegen signature of a planet's atmosphere
- Millisecond pulsar
- What is the capacitance of the sun?
- What if the moon...
- Might A Hot Jupiter Require Another Gas Giant - 3-body Problem?
- Meinel system
- Sputnik Orbit
- What would happen if mass shielded gravity and vacuum has repulsive gravity?
- SMC and LMC misunderstood?
- Orbits: explicit r(t) and theta(t)
- Do supernovae emit gamma rays?
- Eliptic orbit
- what 'pull' the sun?
- Does the Type of vaccum matter?
- Rogue black holes
- Strong Extragalactic Radio Burst Poses a Mystery
- cosmic ray and photon collisions
- Lunar space elevator....
- Help with a problem
- The spacetime landscape of a black hole
- Question about black holes
- Neutron star
- request: comet projectory calculating tool
- dark matter revealed in video feedback
- specific intensity
- Orbital mechanics problem
- What would a black dwarf be like?
- Planet/moon rotation
- Orbital Pertubations (Uranus and Neptune)
- Absence of Jupiter....
- Spacetime light
- Moon fall speed
- the new ending!!
- Tidal Effects of the Moon
- have some ideas...looking for feedback
- Can a planet be 100% liquid?
- Apparent contradiction with orbital mechanics
- Question: Mass distribution in galaxies
- Hawking Radiation
- Photon Splitting or Merging
- The Dead Sun
- Could a collision cause Venus to rotate prograde?
- Does vacuum energy rely on the existence of matter?
- Non-rotational neutron stars?
- How long would we live without the sun
- Speculation on new laws of physics
- supermassive blackholes and galaxy formation.
- Gravity , Dark energy and Atoms
- Learning Stellar Spectroscopy
- Area of light hitting a dome
- Rocket escaping Earth's atmosphere..
- Moon gravity
- Ride a Comet
- Let's try something--let me know if you have difficulty
- A white dwarf formed by a supernova, possible?
- Just a question
- Gravitational Waves
- Gravitron
- cooling sphere
- Need A Help !
- Simulating the gravitational interaction between two material points
- Radius of a black hole
- 'Spinning' the truth about our own Moon?
- Diameter of the Universe
- Aurora Borealis
- collapsing stars
- moon's orbit
- Earths orbit around the sun
- Black Holes Don't Exist?
- Can MOND be ruled out at laboratory scale?
- Star Collapse Question
- 'effects' in astrophysics
- 2 bodies
- Radiis of a star
- Singularity one-dimensional?
- Shocks
- HII Region Temperature Structure
- Aaaaaah...Ring of dark matter
- binary stars equation
- Nice thumbnail sketch of Earth's future by John Baez
- Habitability of Gliese 581 D
- Dark Matter you say?
- If Gravity travels at c
- What happens when a ray of light hits the boundary of the universe?
- "suggests an intrinsic VHE power output peak of the source at above 3 TeV"
- wormhole theory
- Does 1a supernova release the same amount of neutrino as type2 supernova?
- More evidence for Dark Matter?
- Could ultra high-energy cosmic rays be the result of matter-antimatter collision?
- Two simple questions regarding black holes
- Black Holes
- Comet orbits
- Neutron Stars
- NASA Theory proposal
- help - Calculating the mass or average density of Earth if its radius were 4x larger
- Signal Transmission from Mars to Earth
- How can tidal friction on Earth affect the Moon?
- Astronomical Spectroscopy Literature Resources
- Mars's lack of an atmosphere
- MOND-related formula
- Applying the Virial Theorem to Stellar winds
- hypothetical question
- Hopefully a simple problem
- Question about basic astrophysics
- If two black holes combind together------
- If two white-dwarf stars combined together,there will be supernova?which type?---
- origin of radio waves
- A connection between tornadoes and solar explosions
- hexegon on
- Hexagon on saturn
- Prerequsites for galactic astrophysics
- Roemer and the speed of light
- Polarization of Light
- complete shape of the earth
- Can Mars Effect the Asteroid Belt?
- Could gravity's strength also require denisty as an alternative to MOND
- Dark matter
- Saturn's hexagon and his accretion disk jets
- Where does the energy of gravity come from?
- Paralell Universes - SA special report
- Light Waves at Edge of Universe Question
- Moon slingshot powered atmosphere scoop?
- Spacetravel possible?
- How do galaxies form and move?
- 2-body or more orbit systems?
- Solar Cycle & Explanation for Recent Changes?
- Does blackhole have strong magnetic field??
- Quick (Most likely simple) Question
- Help! Visualisation and Stats for a Determinist
- Could Sirius A/B go supernova?
- Hubbles law and Relativity
- Integral points to the fastest spinning neutron star
- redshift anomalies
- Was Newton in Error?
- Effect of Sun movement on Planetary orbits?
- Equinox Tests for MOND
- Radiative transfer
- Acceleration, velocity, distance, speed and time help please
- Earth's rotational speed when its gravity is 5.0m/s2
- how to calculate mass from radial velocity? quick question
- Influence of L1 L2 etc
- Spectroscopic Binary problem.. need help fast..
- Light and Time!
- GP-B scoop
- Rotational velocity of a planet
- Stellar evolution problem
- Space navigation AI problem
- Can you help me understand g's and acceleration for a fictional Star Wars spaceship?
- Quick Distance Modulus question
- escape velocity in vecotrs
- accretion discs and black holes
- p-process
- Astro simulation program problem - program bugs?
- whr did the elecrons come from?
- charged particles from our Sun travelling too fast?
- What would happen if I were to near and be consumed by a black hole?
- Need a topic...
- How do SNe Ia tell us about the expansion of universe?
- HII Regions
- Parker's Spiral Solution
- Are Long GRBs caused by PopIII hypernovae?
- Astrophysics Starter
- science olympiad star question
- unsolved problems in astrophysics.
- Black hole radius
- mathematics in nucleosynthesis
- how come we can see galaxies 9 B l/y away if universe is only 14 B y/o
- Why GRB's?
- Having trouble with eclipsing binaries.
- The Galactic Barrier
- Galaxy Collision
- Tolman surface brightness test -- need help!
- Sunspots
- The Earth going through the galactic plane?
- neutral electron gas in galaxy halo?
- uranium and supernovae explosions
- An Interesting Problem
- Are hotter stars always brighter?
- Sun's Polar Shift on 2012... coincidence?
- EKF for sensors measuring heading.
- If Saturn was a Star!
- How do we really know the universe is expanding?
- sunshade for the earth?
- That asteroid... where's it going?
- AstroPhysics Simulator?
- Equation for Solid Planet Structure
- Radio Waves
- Dark matter - maybe just water?
- frame of reference and speed
- Does Andromeda contain dark matter?
- AGNs, and why there is a torus
- Do the L4 and L5 points travel in a geodesic?
- Two black holes seperated by more than one Schwarzschild radii
- How long does it take
- why is a blackhole a one way ride
- Hypothetical question
- (VLISM) Interstellar medium characteristics
- orbital elements perturbations
- Artificial gravity!
- Speed of gravity...
- Nascent topics.
- Center Sun
- Kelvin-Helmholtz instability & quasar jet 3C273
- Book reference required
- Gravity effect the tilt too
- Zeeman effect
- Random MOND theory / dark matter question(possibly really easy to answer)
- Starting with Astrophysics
- Gravity affect rotation?
- Giant Diamonds
- News Release on Black Hole
- Chadrashekar limit
- Radius of white dwarfs
- Cygnus X-1 and Eta Carinae
- Interesting problem, but hard...
- Dark Matter
- Relativistic effects on interior of our sun?
- no Black Holes no Graviton
- can we hit black hole's surface without dying?
- temperature and orbital period
- WMAP and big crunch...
- Binary pulsars
- converting parsecs to Mega-parsecs
- Question on Hawking Radiation
- A question...
- Theoretical Radial Velocity Curves
- what day this year
- What would happen if two black holes collided?
- Anti-Matter- Regular Matter- Pulse Collisions?
- A good way to look at gravity?
- maximum gravity boost
- Does the PA show that DM/DE is dynamically important in the outer solar system?
- Some Question About Blackholes
- thoughts on blackholes
- Where Does The Hawking Radiation Go?
- How can a star turn into a black hole, with the law of conservation of mass?
- Crab Nebula Spectroscopy
- Gravitation in the solar system
- Missing Helium-3 Found?
- heating the surface of Earth
- lunar phases?
- turbulence pressure in convection zone
- the sun's gravitational pull on the earth
- Quasar energy
- Effect of dark matter on solar system dynamics
- hole through spinning planet
- Planets in Orbit
- galactic motion
- Formation of Dwarf Galaxies
- Maximum Entropy: Black Hole
- Do galaxies have a negative mass defect?
- Neutron star simulation
- Mass of Black Holes?
- New Nature Paper: Old Ia Supernovae different?
- evaluate the pic : got a black spot in sun
- (electron)Degenerate matter
- The Supernova Legacy Survey (SNLS)
- Black & White Holes
- boson stars
- Near IR, how do you see lines?
- Planet moons
- Distance between planets...
- Unequal Gravity
- measuring in space
- radiometry
- Strange Quarks, Quark Stars, & Black Holes
- approaching to black hole?
- Need Help With The MOND Formula
- Gravitational Lensing & Light?
- Galaxy splitting
- Black holes and Light
- redshift/blueshift question
- Planemos Doublet Discovered...
- Volume Limited Sample?
- Obscure Questions
- radius of solar core
- The Largest Structure in the Universe Found
- More quasar questions
- Astrophysics problems
- Star formation
- Accretion disks
- Spectroscopic Binaries
- Deep into the sun?
- quasars
- Sudden ceasing of energy generation
- Spiral Tracer??
- Super massive black hole
- Fusion of stars-time
- Luminosity of M type/Otpe
- sun's surface density
- anyone in san francisco willing to help?
- pulsars and magnetars
- Mars + 25%
- Age of the sun in "galactic years"
- Planet Formation
- planet venus???
- Accretion disks
- Cataclysmic Variables spin rates
- A couple of free books to download
- For those with plenty of time on their hands!
- Why is the solar system, & galaxies seemingly rotate on a 2-D plane?
- Dense dots
- What is singularity?
- Distance modulus
- MECO - has it got legs?
- Inertia and Black Holes
- Time in the past
- Hubble Recession vs. Moon Recession
- Structure of the Milkyway Spiral Redifined
- can a commet orbit a planet?
- Possible to Shield Astronauts from Cosmic Radiation?
- Pioneer Anomaly
- Extra galactic stars
- Gravitational collapse, star precipitation and black hole formation.
- Why do Neutron Stars have a Magnetic Field?
- The Astronomical Buckyball
- Does gravity explain all orbits in our solar system?
- accretion disc observations
- ASCL.net - Astrophysics Source Code Library
- Molecular Hydrogen at the Edge of Universe!
- escape velocity of a body from a black hole.
- Plasma luminosity
- Stoping the desturaction of the sun?
- Radio Waves emitted by Black Holes
- NASA Achieves Breakthrough In Black Hole Simulation
- acceleration due to the solar wind
- Question about black holes
- Would this be a stable system?
- Crazy thought
- Video Recommendations for Black Holes & other space-related phenomena...
- Planetary Orbits
- Weird Question About Satellites
- The Origin of Mass and the Feebleness of Gravity
- Time after big bang we can observe, uncertainty principle
- wmap and razors
- Nasa's new and improved ANTI-MATTER space ship
- Nemesis theory
- Problem with my universe!
- Parsecs
- Help me understand this equation
- Calculating apparent positions of sun and moon
- someone want to have fun with asteroid simulation?
- why can't I do this?
- Just a thought about gravity.
- Big Crunch Or Big rip
- What object is this?
- whiteholes
- eclipse of sun
- strong resonance
- shooting a gun
- Neutron star: heaviest teaspoon of matter
- the physics of dark matter & energy
- Moons of moons?
- The Great Attractor
- Spacecraft Attitude Control Simulation
- How do satellites stay in orbit?
- Redshift > 1.46 means Recessional Velocity over C?
- Highest redshift observed?
- First stars now thought to be 400 MLY after BB?
- planetary retention of atmospheres
- tidal locking radius
- Are Images of Space Distorted by Gravity?
- Entropy
- nuclear reactions in AGN accretion disk
- Possibility of igniting Jupiter
- the most intnse solar strom in 50 years!
- Galatic Frequencies
- Black Hole
- Question about movement
- bolometric correction
- Rotation Of Spiral Galaxies
- Watch out, n00b about :) Black Holes Question.
- What keeps the planets in their consistant orbit?
- The trouble with Sirius B
- Stephan's Quintet
- Angles on the celestial sphere
- Major Access = Averate Distance over Eccentric Anomaly
- Black Holes and Big Bangs
- Why are Globular Clusters so Metal poor?
- What is a Plummer Sphere Exactly?
- Time Dilation and Black Hole Inflation
- Dark matter at colliders
- Finding Dark Matter
- How much of Computer Science?
- Rotating Anisotropic universe
- Venus Synodic Period
- Death nell
- GBE's
- some questions on star evolution
- Interstellar Travel
- Inspire a pleb
- Is there also a He 'fog'?
- collision of black holes?
- Face on Surface Brightness Profile For Spiral Galaxies
- Hans Bethe
- Please explain to a thick man.....
- Can a black hole self-destruct?
- White Dwarfs, > Chandra Mass?
- Temperature
- Regarding DM halos
- orbital period vs. diameter
- designation 2003UB313?
- spin of a black hole
- BVRIJHK photometry
- CNO cycle
- Schechter Function of Galaxy Luminosity-Density relationship
- The Cosmic Ying and Yang
- Star Building
- The view from a ring singularity?
- We all love to prove things.. [spectral broadening/relativity]
- expected sound of colliding black holes
- subsidiary maxima
- Urr, this doesn't seem like it should be very hard but well, good 'ol me
- variable stars
- Black holes: best candidate for dark matter?
- Cepheid
- Jet propulsion in space???
- Supernova?
- Hawking radiation, Is it possible?
- Stellar Evolution
- Greetings, and a few questions.
- MOND overview for beginners
- Planet ejection
- Explain to me the proccess of...
- Close encounters of the massive kind
- Singularity
- vaporized black holes?
- A New Explanation for Venus' Retrograde Rotation
- black holes
- Finding the distance to an Asteroid
- Not sure this is the right thread for this?
- Destroying a planet
- Isothermal v NFW halos
- jupiter
- Nemesis and Planet X
- How do the moon's & earth's orbital planes intersect?
- Spacetime Diagrams
- Moon Satellite
- black holes again
- More Black Hole Questions
- Gravitational flux in solar system?
- Alternative theories being tested by Gravity probe B
- Cooperstock and Tieu Respond to Criticisms
- Gravitational Waves
- Orbits & global Warming
- precession of perihelion
- edmund halley and the venus transit
- gravitational tractor for towing asteroids
- The Latest on the Japanese Asteroid Probe
- Destroying Stars?
- Free Fall Speed
- spin of the moon
- Where does it all go?
- the maximum range of a missile_the earth is not flat
- Venus Retrograde Rotation Redux
- Black hole-event horizon
- black hole question
- Using the EKF for estimating a noisy sinewave
- Important Findings on Dark Matter
- So, feel free to smack me with an education if I'm wrong but...
- Quick question about black holes...
- Spacecraft Mission Design
- Elements formed in supernova
- Why don't stars explode? What holds them together?
- The Center of Galaxys
- Why are geosynchronous orbirs in equatorial plane circular?
- Converting from the horizontal system to the equatorial system
- Presumptive solution of the plane three-body problem in the classical mechanics.
- Moon's orbital acceleration
- Ring system around the Earth
- Habitable zone and Tidal Lock
- Three body problem
- slingshot effect
- Blue-shifted Galaxies
- Astrophysics
- The Apollo Laser Ranger Retroreflector Experiment
- How does gravity repel?
- Gravistars ?
- F=mv^2/r and Geosynchronouse orbits
- Quantum Geometry and Schwarzschild Singularity?
- Photon, Gravity, Mass and Black Holes.
- Halo Orbits
- I am probably going to be critizied for this, but...
- The Susskind "Counter Information Paradox?
- Question on the derivation of Wein's displacement law
- Question on stellar absorption spectra
- course :astrophysics ,introduction ,e.a
- course navy:astrodynamics
- closest distance between two conics (ellipse,hyp.,par.)
- ellipse,polar equation 3D
- astro- modelling a white dwarf via polytrope
- The co-linear 3-body problem
- backward galxy
- Formula for solar radiation pressure
- Black hole - entrance theory
- Changing the Earth's orbit?
- Confused on Orbits: Ellipses vs Circles
- Universe
- Why Can't Rocky Planets Exceed 14 Times Earth's Size?
- orbit smulation and speed of gravitation
- Determining orbital elements
- Galaxy orbit
- How closely could the Moon orbit the Earth
- Does this look accurate to you?
- [Milky way] Is it a spiral?
- Supernova
- Action
- does the 3-body problem have stable solutions?
- "10th Planet" resonance with Neptune
- Solar/stellar models
- Neutronium armor
- Neutron star
- powered gravity assists
- Does light emitted from the edge of the sun have a different wavelength than light em
- Galactic Formation
- Restricted circular 3 body problem RC3BP
- pulsars with irregular periodicity radiation
- Virtual pair production - black holes
- Understanding the Extended Kalman Filter
- The path of our planetary bodies
- moon-earth slingshot
- Solar Eclipses
- Null energy condition
- Blackholes
- Maximum count for mutually bound stars
- Black Holes and Thermodynamics
- Neutron Stars
- BHs Matter
- Solar activity peak in April 1981?
- NBody evaluation, is my model correct?
- creation of heavy elements: r and s process
- Why are orbits elliptical?
- My first post here and a question
- Debye length?
- spin factors
- Main Sequence
- Gravitational Waves of Early Universe
- optic and velocity
- Anterior Propulsion
- Neutron stars
- what if
- Baricentre (barycenter) - does it 'wobble'?
- Need Source Code In "c" For 2-Bodies Gravitational Problem
- Zaheer A
- process noise of satellite orbit determination
- Difference between BH's and BH's?
- problem of process noise of satellite orbit determination
- Schwartzchild Radius & entropy
- Redshift, Blueshift
- Acceleration At The Event Horizon
- White dwarfs
- Stellar size limit
- What is a degenerate gas?
- Effects of spontaneous gravity reduction
- 1-dimensional problem in newtonian gravity- HELP!!
- Nearby supernova and solar wind
- 3 Questions - Why are some orbits...
- Is it possible for a Rocky Giant with rings around it?
- How do you derive the tidal force equation?
- Newton's Equation
- Orange moon
- Why is it difficult to measure the perihelion advance of the planet Venus? Help!
- Venus Perihelion
- Need Help
- Physics of Dark Matter (theory)
- Oort Cloud Treat to Interstellar Space Travel
- Multiple star planetary system dynamic
- why is the moon drifting into space
- mini sun?
- the orbit of the earth
- orbital distance
- Exoplanet Dynamics
- Hawking Radiation – Empty space virtual antiparticle-particle pairs
- Have any of you heard about
- convert between Equatorial and ecliptic elements
- new theory
- Dark Energy Dark Matter
- zero stars next to the Sun?
- Blackbody radiation
- Stellar Wobbles
- initial condition of the restricted problem of three bodies
- Our moon does not turn ??
- Help with an orbit sim
- Trojans
- Angle of the Sun?
- is it possible?
- Effects of a Closed Universe
- Difference between flare, CME and SPEs
- Astrophysics -What actually is this?
- Hubble Orbit
- G formula?
- Multi Star Solar Systems
- "...anomalous distribution of..."
- Mass-Luminosity Relationship
- New images!!!
- artificial atmosphere
- Change in Triple-Alpha Process?
- Black holes effect Reality?
- old idea?
- character of shock wave
- A starkiller, theoretically possible? (Star Trek: Generations)
- Terrestrial, asteroidal and gaseous
- Star bifurcation
- Documentry Series: SPACE
- how does a pulsar die?
- n-body simulation test with sun, earth and moon
- Ring Nebula
- Interstellar medium: Theory and models.
- Solar Eclipse local circumstances
- planet swapping
- H- and HII ions
- Creating a black hole.
- Roche limits with a hint of internal bonds.
- Codes for Stellar Astrophyiscs
- Binary Planets
- Rotation
- how to estimate star's mass without gravitation constant?
- Minimum mass of a black hole
- A question in Kepler's second and third laws.
- Does the gravity constant change?
- When is a star born?
- The cosmologic constant problem
- Nebula
- Why can you see white through H-alpha filter?
- If Sun = 98% H & He, why continuous spectrum?
- Gravity Waves?
- Travelling to the moon.
- Black Hole Blast...
- A star's orbit
- Maximum Radial Velocity
- Orbital Motion Help
- What is the significance of the Cauchy horizon?
- 3 Questions about our universe???
- Graph of G Potential vs. Radius
- Satellite orbit
- Mass of Jupiter using as Many moons as Possible
- stellar atmosphere
- A rock, the earth, an ellipse and the joys of angular momentum
- GRB's
- who rotates around whom?
- Will the asteroids eventually (re)form a 10th planet?
- Mutual solar-extrasolar orbital foci
- elliptical orbits
- Galactic Halo's
- Calculating E or M from a State Vector
- Mu
- how does velocity affects the shape of orbit
- Gravitational effect of sun on earth
- Let's try another way...
- Stellar life expectancy
- Theoretical Extinguishing of the Sun with water!
- Converting a State Vector
- crescent moon
- Relate the two pictures
- What shall we call this class of star?
- We always see the same side of the moon
- How to calculate the time taken for the sun to cool down?
- Spin of Mercury
- something for everyone
- Need Help on twin-planet problem!
- orbiting the earth
- Kepler's Laws
- Perception of color in space...
- neutron stars and colour force...
- why does Bode's law work?
- Moons of Moons
- The Sun's X-file Under The Spotlight
- Green stars?
- Why singularities and not exclusion?
- Escape Velocity Formula
- Good Orbital Mechanics book?
- Quantum Gravity Forum at PF
- The Orion Trapezium
- neutron stars and colour force
- Your "weight" on a "Space Elevator"?
- Why do stars emit electromagnetic waves?
- Star formation and distribution in spiral galaxies
- star question
- Weightlessness in the Center of The Earth?
- Entropy of a star
- The Denouement of Blue Supergiants
- QG plasma and gamma ray bursters
- Clustering Galaxies
- Particle-DarkMatter...
- Seismic Stars...
- geostationary satellites
- Neutral Neutronium...
- solar features
- Sean A Hayward-Energy and entropy conservation for dynamical black holes
- Calculating viewing times of satellite from groundstation
- Three body problem
- Dark Matter
- x-rays from center of galaxy
- Planets
- orbits around sun
- n-star vs. BH supernova
- n-star vs. BH
- B-field of n-star
- Why do neutron stars have magnetic fields
- Orbit Determination for Dummies! Another hillbilly tutorial.
- Why Orbits and Rotation?
- "What caused the planets to aggregate as they did?
- What is a Singularity?
- About 'Hawking Radiation'
- The Cause Of Spin.
- gravity and angular momentum
- Black hole paradox solved?
- Oppenheimer-Volkov degeneracy...
- Laplace-Runge Lenz vector
- Black holes and the Chandrasekhar limit
- hyperbolic interplanetary transfer
- Pondering Question
- Killer App!
- can you help me?
- Black Hole Radiation
- Planetary nebula...
- What happens to stars smaller than ours?
- Glittering Galaxy...
- Space as a vacuum and earth's atmosphere
- red shift dilemna
- Accretion disk model: Hydrodynamical or collisional N-Body?
- venus transit question
- Transit of Venus mathematics please.
- Question regarding 'center'
- Supernova ignition.
- Detailed Mass-Luminosity Relation for Main Sequence Stars
- evaluate my brand new program! :) satelite motion around earth!
- Transfer orbits for dummies! A hillbilly tutorial.
- A "new" Martian calendar?
- Question--can a neutron star shed mass?
- density of black holes?
- Entering the Sphere of Influence
- Asteroids and Space Rocks
- Prodigy Planet...
- black holes
- oddity
- Just curiosity star collision
- Gigantic Galaxy...
- How the calculated total velocity derived ?
- "Alive" or already "dead"
- Help! Distance between Mu Leporis & Nihal?
- Sunrise from west
- How to measure the Distance from Earth to Sun?
- Some other curious questions about stars...
- Substances on the stars
- Spaceships a'turnin round and round -- in space
- what mass is lost after a hypernovae?
- what is the calculated mass of a post supernovae star
- Geosynchronous station keeping
- Analogous Hawking Radiation from Astrophysical Black Hole Accretion
- Blackhole Symmetry
- Solar Modelling
- A question about the sun and blackbody
- Textbook on Numerical Celestial Mechanics
- Distance between orbits
- Classification of Stella Spectra
- Mass increase of black holes
- Conjunction of Venus and Sun...a rare event
- sedna
- Angular momentum in close binaries
- [SOLVED] Two black holes and the event horizon..
- A simple Chart
- Orbit Simulator
- gravitational field of globular clusters...?
- Good astrophysics schools in california
- silly question about gravity
- Is information lost in a black hole?
- How is the density of a white dwarf star calculated?
- Any questions?
- Stellar Modelling
- EM field of black hole
- Angular momentum at an angle!
- beginners...
- Is The Speed Of Light "Slowing Down"?
- Escaping from the solar system
- Astrophysics as an career
- Hollowed out world
- Neuron Stellar Cores...
- Big Bang Blast!
- Pull of the Galactic Center
- variable star
- Star Collision
- variable stars
- Stellar Structure and Evolution
- equasions (help!!)
- astrophysics
- Looking for a good book
- Black Hole Blast...
- heart of glass
- Formulas ^_^
- Orbiting
- Difference between a Gravity Well and a Black Hole
- Schw. black hole ringing frequencies
- Help with Black Hole theory
- Space-Time Whirlpools...
- Double Star characteristic frequencies of light
- What the spectrum of radiation of stellar objects depends of?
- Physics of space travel
- super clusters
- Matter Exceeding the Speed of Light
- Gravity acting as a repulsive forces at long distances
- Distance to star, much little
- What is a planet's order called?
- What if the sun was blue?
- Binary Planets
- Newton-Hooke Equasion...
- Cosmic Ray Observatory...
- The Coronal Heating Myth Resolved
- Significance of equal Sun and Moon apparent sizes?
- Active Galactic Nuclei?
- Hawking Radiation...
- Neutrino Flux...
- Blackholes and time
- neutron stars new discovery
- Astrophysics as a Career?
- determining stable orbits for other stars
- Deep Space Exploration?
- determining orbits from R.A., Dec, & time
- zero gravity
- Hawking Radiation 2 (different question)
- The density of Mass relative to a critical mass
- Understanding Hawking radiation
- Collisions of large bodies starting at stationary positions
- Ptolemy was not so wrong...?
- Other planetary systems
- Geosynchronous Orbit
- Kepler's Third Law
- Good read for basic background info
- question about light and blackholes
- Lunar Eclipse
- Gravitation slingshot
- Planet cores precession
- Can you measure a star's diameter directly?
- GRB Question
- Alan Guth's Inflationary Theory
- [SOLVED] The Roche Limit
- The expanding universe
- GRB-and the internet?
- Planetary rings
- General Questions about Stars
- Cosmic Reality Check: wired.com
- Type 1a Supernova
- Pink black holes
- An Introduction to Black Hole Thermodynamics
- why orbits eliptical?
- question
- gravitational radiation
- gamma rays origin
- Gravitational differential
- the phantom planets
- energy
- Dark Matter as primordial Black Holes in extended Halos
- [SOLVED] round and round she goes
- static universe
- Precession-Time Paradox
- new way to find expantion?
- Virial Theorem
- Worm Holes!
- Hubble chases exploding stars: re dark energy
- Issac Asimov moon planet theory
- ORSA Software
- Gamma rays may have devastated life on Earth: Newscientist.com
- Conceptual Question in Gibbs Orbit Determination
- Gravity: Strength in Weakness: CSM
- Did Primordial Black Holes evaporate?
- [SOLVED] Motion sickness
- hypothetical question
- "Wobble" of Planetary Core
- Mass and space
- recommendation
- Solar Flares on Steroids: NASA
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