Astronomy and Astrophysics Forum

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Join in expert discussion on the topics of Astronomy and astrophysics. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
Undergrad Escaping earth's atmosphere with a balloon
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Undergrad Planetary Orbits & Orbital Velocity
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Undergrad A few very specific questions about Venus
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Undergrad Van Allen Belt: Why are electrons generally further out?
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Undergrad Basic question about spacetime and matter
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Undergrad Can a star with thousands of solar masses be formed?
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Undergrad Rocky Bits in Comets: Formation from Dust?
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Undergrad How Does Rosetta Maintain Its Position Relative to the Comet?
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Undergrad Average distance among pieces of space debris in low earth orbit?
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Undergrad Why does the sun appear to move eastwards from Earth?
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Undergrad Active Region AR2192 heading towards the limb
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Undergrad Flux --> Apparent magnitude ( only 1 source )
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Undergrad The mass of the sun at its beginning
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Undergrad Shape of Galaxies: Explaining Spiral & Elliptical Structures
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Undergrad Calculating Sun's Luminosity: Step-by-Step Guide
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Undergrad Solar System inside a black hole
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Undergrad Fire in Low Gravity: Visualizing a Biodome Blaze
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Undergrad Help calculating The mass of a Black hole (homework help)
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Undergrad How did Einstein know the properties of space and time
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Undergrad Can someone explain the mathematics of this formula for Venus' orbit
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Undergrad Why do galaxies and solarsystems form disks?
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Undergrad Unraveling the Relationship Between Magnetic North and Solar East
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Undergrad Why do the constellations appear to move differently in different seasons?
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Undergrad Can a planet with a thin atmosphere have oceans?
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Undergrad What is the Density Change Towards the Centre of a Gas Giant?
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Undergrad Would the sky be red if the atmosphere was thicker?
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Undergrad What is the significance of the foci in gravitational orbits?
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Undergrad Were all galaxies quasars when they were young?
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Undergrad I require help with understanding beginner astronomy questions.
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Undergrad How Stars Ignite - The Fusion Reaction
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Undergrad Determine the least value of declination of stars so that stars can be seen?
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Undergrad What's the scale on Mars rover "Microscopic Imager" images ?
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Undergrad Kepler's 3rd Law: Solving Questions & Math
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Undergrad How can I determine right ascension and declination of a star in the sky?
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Undergrad Introdutions to mathematical astronomy?
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Undergrad Reynolds Number and Turbulence in Atmospheric Boundary Layers
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Undergrad Could Super-Bacteria from Space Pose a Threat to Earth?
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Undergrad Gravitational Lens with home scope?
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Undergrad How does solar wind effects Geomagnetic Field?
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Undergrad Oldest part of the galaxy that could have held life?
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Undergrad Detecting more than 1 exoplanet using Radial Velocity Method.
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Undergrad Gravitational pull of manmade satellites
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Undergrad Understanding Redshift: Mathias' 15-Year-Old Query
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Undergrad Calculation the orbital period of Moon.
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Undergrad How light travels such long distances?
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Undergrad List of Stars and Objects equating Names
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Undergrad A quick question about Elliptical/Circular Orbit
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Undergrad Does Gravity Have Lines of Force Like Magnetism?
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Undergrad How Do Scientists Distinguish Between Red Shift and a Red Dwarf's Natural Color?
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Undergrad University project for astrophysics
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Undergrad Do two masses gravitate to their centre of mass
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Undergrad Water Clouds Tentatively Detected Just 7 Light-Years from Earth
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Undergrad Is Zero the Most Ideal Value on a Number Line?
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Undergrad The Pleiades Controversy Erupts Again
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Undergrad Low-eccentricity orbits and the Plane of the Elliptic
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Undergrad Map or a Listing of All the Constellation Boundaries in Right Ascensio
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Undergrad Calculate Area of Ellipse in Keplerian Orbit
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Undergrad Why do all the planets orbit in the same plane?
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Undergrad Can Gas Giants' Atmospheres Ignite Without Oxygen?
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Undergrad Geocenteric Equatorial Coordinates of the Sun
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Undergrad Do we live in a black hole(or an white hole)
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Undergrad How do we know the orbits of the planets?
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Undergrad Creating an equation of a 2D path of an orbit
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Undergrad The Most Distant Star in the Milky Way
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Undergrad Perfect Full Moons" - Find Date & Place to See Rare Celestial Event
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Undergrad Question about space travel and the human body
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Undergrad What is Specific Intensity in Astrophysics?
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Undergrad Why does'nt SUN burst like a baloon and collapse?
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Undergrad Does Aluminum Coating on Telescope Mirrors Turn into Aluminum Oxide?
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Undergrad Calculating latitude and longitude at any time
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Undergrad Could our solar system exist 100x bigger?
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Undergrad What are some recommended books on white dwarf stars?
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Undergrad Synodic Period: Definition & Equation
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Undergrad Sidereal Periods: Definition, Equations & Examples
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Undergrad What is the Mathematical Definition of Orbital Eccentricity?
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Undergrad Kepler's Laws: Definition & Equations
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Undergrad What is Irradiance? Definition, Equations & Explanation
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Undergrad The Effect of Planets Rotation within its Galaxy?
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Undergrad Astronomy Resources for Learning & Research
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Undergrad How was the core temperature of sun estimated ?
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Undergrad Stopping a star from going supernova
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Undergrad Could we read a newspaper from a satellite image?
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Undergrad Why can we see light emitted near the beginning of the universe?
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Undergrad Hubble Finds Vast Reservoir of Gas Near Milky Way
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Undergrad Understanding and Creating an O-C Diagram
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Undergrad Why do most galaxies have a flat, disc-like shape?
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Undergrad Large Body Orbiting a Small One?
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Undergrad Can Black Holes Be Broken Apart?
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Undergrad Radio Waves from Stars: Investigating the Mysteries
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Undergrad Where Do Electrons Go in the Plasma State of Stars?
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Undergrad Can Black Holes Increase in Mass?
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Undergrad Stars Creating Elements Heavier than Iron
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Undergrad Voids inside atoms and voids in space?
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Undergrad How can Google Sketchup simulate Sun and Earth movement for seasonal changes?
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Undergrad Conics and Beyond: Understanding Trajectories in Multiple Gravitational Fields
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Undergrad Understanding the Expanding Universe and Its Impact on Earth's Distant Future
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Undergrad Can dark energy be a different dark matter?
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Undergrad Detect planets in solar systems like ours
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Undergrad Inverse square law explains Olbers' paradox?
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Undergrad How to calculate absolute magnitude of a stellar body?
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