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.
High School How many stars we can see from Earth?
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Geminid Meteor Shower: Peak Rates Up to 120/hr Dec 13-14
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Graduate Is WD 1445+017 b the remains of a star?
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High School Is Voyager 40k years from a star?
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High School Could Solar Wind and CMEs be Causing Magnetic Storms on Comet Catalina?
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Graduate Does Jupiter have precession of the equinoxes?
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Graduate How Do Binary Dwarf/Neutron Stars get so close?
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Undergrad What Causes the Sun's Unusual Orbital Path in a Java Solar System Model?
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Graduate Possible LBV Detected in Mayall II Star Cluster
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High School Anyone see the brief flash in Orion last night?
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Graduate Accounting for time passed in our observation of the universe
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Undergrad Delta-v to overcome atmospheric and gravity drag at 13km?
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Undergrad Sun Orbits Center of Mass w/ Jupiter & Earth: How To Calculate?
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Graduate Q: Deep Sky Stacker hints & tips
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Stargazing Compute In-Band Irradiance with an Infrared Telescope
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Undergrad Force required to "move" asteroid
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Undergrad Image Processing Software for Solar Astrophysics Research
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Graduate Question regarding What is the universe made of?
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High School What is the Physical Meaning of Permittivity of Free Space?
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Undergrad Ball thrown from ISS to earth at right angle to it's path
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Undergrad Why they don't increase altitude of ISS to overcome drag
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Graduate Does Increasing Luminosity Affect the Percentage of Dark Matter in a Galaxy?
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High School Why there are summer and winter seasons?
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Undergrad Abt seeing the Andromeda Galaxy with the naked eye in future
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Undergrad How Does Rosetta Maintain Orbit Around a Low-Gravity Comet?
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Undergrad There must be a center of the universe....?
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High School Transit of Venus: Venus Passes Directly Between Sun & Superior Planet
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Space Question -- If I kept going down past the solar system....
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Online Sources for Kepler Exoplanet Data
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Undergrad Why is normal force in a satellite zero?
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Graduate Is it possible that "dark matter" is a side effect?
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Undergrad Two satellites A and B move around earth in a circular orbit
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Undergrad Will Radial Escape Velocity Launch a Satellite Into Orbit?
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Graduate Calculating Core Temperature of a Brown Dwarf
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High School So I want to bend space lots of times
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What can a newcomer to astronomy bring to the table?
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Graduate Black holes' existence from our point of view
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Graduate Gravitational effect of a black hole based on distance
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Graduate How (un)stable are the Lagrangian points 1, 2 and 3?
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High School Difference between Cosmology and Astronomy
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Graduate If black holes never exceed a certain mass....
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Graduate Does All Energy Affect Spacetime Curvature?
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Undergrad Can a Lost Spaceship Navigate Back to Earth in the Milky Way?
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High School Retrograde Motion: What is it & How Does it Work?
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Graduate Why is there no DM halo around the solar system?
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High School Will We Witness a Daytime Visible Supernova in the Near Future?
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Graduate Describing elliptic orbit as a parametric function
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Full Moon Photography: Mastering Settings at 25%
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Stargazing What Type of Telescope Should I Buy as a Beginner?
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Undergrad Drake Equation: Explaining N Value
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High School What is Dark Matter and Dark Energy?
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Graduate Did Venus's Lack of Plate Tectonics Contribute to Losing Its Oceans?
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High School Newly Discovered Trans-Neptunian Dwarf Planet
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Stargazing Basics of Using a Telescope - Locating Stars (RA)
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Graduate Chem analysis to start at best site for low-gravity industry
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High School Astrophysicists and their use of physics in their studies?
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Stargazing Which telescope is best for amateur stargazing?
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High School The Mysterious Movement of the Moon: What Does It Mean for Our Weight?
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Undergrad Homemade Cosmic Microwave Background detector
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High School Why Doesn't Earth's Rotation Affect Flight Times?
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Graduate Universe has to have finite size - doesn't it?
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Help finding some info about the movement of the observable universe
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Undergrad Milky Way stole its farthest star cluster from another galaxy
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High School Weight of Objects in Space: Explained in Layman's Terms
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Undergrad Is It Possible to Do Photometry Without Using a CCD?
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Graduate Matter Antimatter Annihilation event?
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Undergrad Space Travel to Mars: Overcoming Atmosphere & Creating a Bus Stop in Space
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High School Watching Earth travel in space....what should be the location
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Undergrad Galaxy and Stars: Questions Answered
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Undergrad What Is the Difference Between Surface Brightness and Apparent Brightness?
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Graduate What information can be derived from the pulsars featured on the Voyager plate?
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Pleiades Visible: Last Night -Subaru WRX to Ferrari F12
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Graduate Notes on Star Formation: A Primer for Stellar Formation
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Graduate Is the higgs field the same as spacetime foam?
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Graduate Viscous Disc Paradox: How Does Friction Operate?
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Undergrad Newest exoplanet close enough to study its potential atmosphere
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Graduate What force is created before supernova explosion?
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High School What are the various types of cosmic explosions?
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Graduate Is the Universe Truly Empty or Filled with Potential?
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Graduate How many generations old is our system?
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Undergrad Basic Astrodynamics: Understanding Total Energy
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Undergrad Why do some planets occlude the Sun while others do not?
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Graduate Spacetime explanation to describe non-gravitational forces
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High School About the use of wormhole in the interstellar movie
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Stray Asteroid or Unknown Meteor? Meteor Crash in Thailand Captured on Dashcam!
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Graduate Practice Images for CCD Photometry?
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High School What Do We Need to Survive on Mars?
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Undergrad Earth's orbit & precession affected by Venus & Jupiter?
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High School Something escapes the corona of a black hole
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Graduate What Is the Most Relevant Contribution to Earth's Orbit After the Sun?
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Undergrad Center of Lift vs. Center of Thrust
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Graduate What happens to coronal mass ejections?
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Graduate Center of Mass in Elliptical Space
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Graduate Why low precision of the radius of Sun's orbit in MW?
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Graduate Orbital Momentum: Equal or Variable?
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High School NEO 2015 TB145: 5 Facts About "Halloween Asteroid
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Graduate Where does the mass of a black hole come from?
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Undergrad Can I use the Fourier Transform to analyze the Sun's Spectrum?
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Graduate Neutron star warm matter - temperature?
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Stargazing Some tips for a better experience of stargazing using 76 mm telescope
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