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Astronomy and Astrophysics Forum

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.

Prefix: Undergrad

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Undergrad Apparent Magnitude: Understanding Star X's Brightness

May 20, 2014 · Replies 4 · May 21, 2014

Replies: 4

Views: 3K

Undergrad Amount of solar energy per day in a given location

May 17, 2014 · Replies 4 · May 18, 2014

Replies: 4

Views: 2K

Poll

Undergrad Are Black Holes Really Black or Just Colorless Void?

May 17, 2014 · Replies 2 · May 17, 2014

Replies: 2

Views: 2K

Undergrad Measuring Earth's Orbit: Methods and Distortions Explained

May 12, 2014 · Replies 11 · May 14, 2014

Replies: 11

Views: 2K

Undergrad What Are the Best Resources for Understanding Star Clusters?

May 13, 2014 · Replies 1 · May 13, 2014

Replies: 1

Views: 3K

Undergrad How do we find the exact temperature of a star/galaxy?

May 6, 2014 · Replies 13 · May 7, 2014

Replies: 13

Views: 4K

Undergrad Titan vs Earth: Hydrocarbons vs Water - Pros and Cons for Thriving Life Forms

May 2, 2014 · Replies 8 · May 6, 2014

Replies: 8

Views: 3K

Undergrad What Are Black Bodies & Why Are Stars Considered Them?

May 4, 2014 · Replies 14 · May 4, 2014

Replies: 14

Views: 3K

Undergrad The Meaning of 'Proportion' in Richard Feynman's Views on the Universe

Apr 23, 2014 · Replies 18 · May 3, 2014

Replies: 18

Views: 5K

Undergrad Could a planet get heavier without needing to grow in size?

Apr 25, 2014 · Replies 3 · Apr 30, 2014

Replies: 3

Views: 3K

Undergrad How Is the Angular Diameter of Jupiter Measured and What Equipment Is Used?

Mar 31, 2014 · Replies 2 · Apr 29, 2014

Replies: 2

Views: 3K

Undergrad Why does gravity increase when a star dies?

Apr 27, 2014 · Replies 3 · Apr 29, 2014

Replies: 3

Views: 7K

Undergrad Collision Sparks Star Birth at Our Galaxy's Edge

Apr 4, 2014 · Replies 1 · Apr 27, 2014

Replies: 1

Views: 3K

Undergrad Is it really possible to see down to mag 8?

Apr 25, 2014 · Replies 4 · Apr 26, 2014

Replies: 4

Views: 3K

Undergrad Can NMEA (GPS) Data Tracker Help Improve Signal Reception?

Apr 25, 2014 · Replies 4 · Apr 25, 2014

Replies: 4

Views: 2K

Undergrad Time travel into the past a possibility now?

Mar 1, 2014 · Replies 7 · Apr 22, 2014

Replies: 7

Views: 3K

Undergrad Light & Black Hole: Absorbing Light w/o Mass

Apr 10, 2014 · Replies 14 · Apr 21, 2014

Replies: 14

Views: 2K

Undergrad Iapetus equatorial ridge fell from the skies

Apr 19, 2014 · Replies 8 · Apr 20, 2014

Replies: 8

Views: 3K

Undergrad Is circumnavigation possible on Phobos or Deimos?

Apr 18, 2014 · Replies 2 · Apr 19, 2014

Replies: 2

Views: 2K

Undergrad The Sun's Next Phase: Can We Avoid Extinction?

Apr 18, 2014 · Replies 3 · Apr 19, 2014

Replies: 3

Views: 5K

Undergrad Why terrestrial planets in inner solar system & gas giants in outer?

Apr 9, 2014 · Replies 9 · Apr 18, 2014

Replies: 9

Views: 6K

Undergrad Why is angular momentum not conserved in 2 similar mass planet system?

Apr 16, 2014 · Replies 1 · Apr 17, 2014

Replies: 1

Views: 2K

Undergrad How accurate is our image (depiction) of the Milky Way?

Apr 16, 2014 · Replies 5 · Apr 16, 2014

Replies: 5

Views: 3K

Undergrad Why did Earth lose its first atmosphere but keep its second?

Apr 9, 2014 · Replies 9 · Apr 15, 2014

Replies: 9

Views: 8K

Undergrad How do they calculate how fast celestial objects are moving?

Apr 10, 2014 · Replies 8 · Apr 10, 2014

Replies: 8

Views: 5K

Undergrad Unusual light rising from Martian surface

Apr 8, 2014 · Replies 1 · Apr 9, 2014

Replies: 1

Views: 2K

Undergrad Gravitational Redshift and Hubble.

Mar 29, 2014 · Replies 17 · Apr 6, 2014

Replies: 17

Views: 4K

Undergrad Is the Mass-Luminosity Relationship for Main-Sequence Stars Linear?

Mar 28, 2014 · Replies 4 · Apr 6, 2014

Replies: 4

Views: 2K

Undergrad The Sun's End: Predicting the Inevitable

Mar 18, 2014 · Replies 5 · Apr 5, 2014

Replies: 5

Views: 3K

Undergrad Smallest Body Possible to Have Rings

Mar 28, 2014 · Replies 8 · Apr 1, 2014

Replies: 8

Views: 3K

Undergrad Where Do Stars Form: Cool Nebulas or Hot Nebulas?

Mar 24, 2014 · Replies 8 · Mar 31, 2014

Replies: 8

Views: 3K

Undergrad Were we really created from supernovas?

Mar 30, 2014 · Replies 4 · Mar 30, 2014

Replies: 4

Views: 3K

Undergrad The weak force, first step of nuclear fusion in the Sun

Feb 23, 2014 · Replies 5 · Mar 30, 2014

Replies: 5

Views: 4K

Undergrad Normal Force in Space: Ball on Table in Spacship

Mar 25, 2014 · Replies 21 · Mar 27, 2014

Replies: 21

Views: 8K

Undergrad Discovery of Asteroid With 2 Rings - Centaur Chariklo

Mar 26, 2014 · Replies 2 · Mar 26, 2014

Replies: 2

Views: 3K

Undergrad Astronomy Day is coming at my university; any suggestions for demos?

Mar 23, 2014 · Replies 11 · Mar 25, 2014

Replies: 11

Views: 2K

Undergrad The elliptical orbits and inverse-square law forces.

Mar 23, 2014 · Replies 3 · Mar 24, 2014

Replies: 3

Views: 3K

Undergrad Apologizing for Grammar: Time, Speed & Space

Mar 22, 2014 · Replies 1 · Mar 22, 2014

Replies: 1

Views: 3K

Undergrad What substance could potentially flow and pool on the surface of Venus?

Mar 20, 2014 · Replies 4 · Mar 21, 2014

Replies: 4

Views: 5K

Undergrad How likely is it that Europa has life under its icy surface

Nov 29, 2013 · Replies 15 · Mar 21, 2014

Replies: 15

Views: 5K

Undergrad Nearest Stars to Earth: Red Dwarfs Dominant

Mar 17, 2014 · Replies 7 · Mar 20, 2014

Replies: 7

Views: 3K

Undergrad Are Black Holes Necessary for the Universe to Function?

Mar 15, 2014 · Replies 11 · Mar 18, 2014

Replies: 11

Views: 4K

Undergrad The magnitude of Earth from Moon

Mar 13, 2014 · Replies 13 · Mar 17, 2014

Replies: 13

Views: 4K

Undergrad Moon Dust & Cosmic Radiation: Risks of Bringing it to Earth's Surface

Mar 16, 2014 · Replies 3 · Mar 16, 2014

Replies: 3

Views: 3K

Undergrad Bizarre vertical light phenomena help

Mar 4, 2014 · Replies 22 · Mar 11, 2014

Replies: 22

Views: 6K

Undergrad Orb.mec: Is the inclination of an ecliptic-perpendicular orbit 113,4º?

Mar 7, 2014 · Replies 2 · Mar 8, 2014

Replies: 2

Views: 2K

Undergrad Please explain XX μm-selected galaxies

Mar 3, 2014 · Replies 2 · Mar 6, 2014

Replies: 2

Views: 3K

Undergrad Size of university and Dark Matter

Mar 5, 2014 · Replies 5 · Mar 6, 2014

Replies: 5

Views: 2K

Undergrad Understanding Planetary Spheres: The Role of Gravitational Compression

Jan 18, 2014 · Replies 8 · Mar 4, 2014

Replies: 8

Views: 4K

Undergrad Do Jupiter Trojans Ever Collide with Other Objects in Their Orbit?

Mar 2, 2014 · Replies 4 · Mar 3, 2014

Replies: 4

Views: 4K

Undergrad How Can Kepler's Third Law Be Applied to Multi-Object Systems in Visual Python?

Feb 24, 2014 · Replies 5 · Feb 28, 2014

Replies: 5

Views: 2K

Undergrad Unveiling the Mysteries of Dark Matter

Feb 8, 2014 · Replies 28 · Feb 28, 2014

Replies: 28

Views: 5K

Undergrad Understanding Gravity & Orbit in Our Solar System

Feb 22, 2014 · Replies 9 · Feb 26, 2014

Replies: 9

Views: 3K

Undergrad Nebulae, as seen from the inside

Feb 26, 2014 · Replies 2 · Feb 26, 2014

Replies: 2

Views: 3K

Undergrad Trying to start a space club at university, help?

Feb 22, 2014 · Replies 4 · Feb 23, 2014

Replies: 4

Views: 3K

Undergrad Atmospheric Extinction: How Deep Can 20/15 Vision See?

Feb 20, 2014 · Replies 9 · Feb 23, 2014

Replies: 9

Views: 3K

Undergrad Model to draw an absolute straight line

Feb 15, 2014 · Replies 23 · Feb 23, 2014

Replies: 23

Views: 3K

Undergrad Tesla Coil Thruster: Could it be Possible?

Feb 22, 2014 · Replies 4 · Feb 22, 2014

Replies: 4

Views: 4K

Undergrad Is it possible for one celestial body to trail another indefinetly?

Feb 18, 2014 · Replies 1 · Feb 19, 2014

Replies: 1

Views: 2K

Undergrad Question about Cosmic Background Radiation

Feb 18, 2014 · Replies 1 · Feb 18, 2014

Replies: 1

Views: 2K

Undergrad How Many Unique Points Exist in a Region of Space?

Feb 14, 2014 · Replies 8 · Feb 16, 2014

Replies: 8

Views: 2K

Undergrad No need for complications - Simple clear steps

Feb 12, 2014 · Replies 7 · Feb 12, 2014

Replies: 7

Views: 3K

Undergrad Is there red shift evidence for light?

Feb 4, 2014 · Replies 10 · Feb 11, 2014

Replies: 10

Views: 4K

Undergrad What is the equation of the orbits of things in space?

Feb 8, 2014 · Replies 2 · Feb 8, 2014

Replies: 2

Views: 2K

Undergrad Stellar Classification Limits: Temperature & Magnitude

Feb 4, 2014 · Replies 2 · Feb 7, 2014

Replies: 2

Views: 2K

Undergrad When Will the Planets Align Again with Varying Year Lengths?

Feb 6, 2014 · Replies 9 · Feb 7, 2014

Replies: 9

Views: 5K

Undergrad Could the universe be a giant spinning teacups ride?

Jan 26, 2014 · Replies 3 · Jan 26, 2014

Replies: 3

Views: 3K

Undergrad Calculating what latitude aurora is visible using KP Index

Jan 21, 2014 · Replies 2 · Jan 22, 2014

Replies: 2

Views: 4K

Undergrad Would the outer planets in our solar system survive a supernova event?

Jan 13, 2014 · Replies 7 · Jan 22, 2014

Replies: 7

Views: 4K

Undergrad Problems understanding how universe has no center.

Jan 20, 2014 · Replies 14 · Jan 21, 2014

Replies: 14

Views: 4K

Undergrad How do you find the temperature of the boomerang nebula?

Jan 18, 2014 · Replies 8 · Jan 20, 2014

Replies: 8

Views: 5K

Undergrad Can Light Alter the Velocity of Asteroids in Space?

Jan 15, 2014 · Replies 2 · Jan 20, 2014

Replies: 2

Views: 2K

Undergrad Relationship between Gravity and Density

Jan 18, 2014 · Replies 7 · Jan 19, 2014

Replies: 7

Views: 15K

Undergrad Why do some nebulae form into stars while others remain diffuse?

Jan 14, 2014 · Replies 2 · Jan 17, 2014

Replies: 2

Views: 2K

Undergrad How to Determine Absolute Magnitude

Jan 15, 2014 · Replies 1 · Jan 16, 2014

Replies: 1

Views: 3K

Undergrad Could gravitational lensing prove the universe to be older?

Jan 11, 2014 · Replies 1 · Jan 11, 2014

Replies: 1

Views: 6K

Undergrad Saturn-Sized Star Will Live For 12 Trillion Years

Jan 10, 2014 · Replies 2 · Jan 11, 2014

Replies: 2

Views: 3K

Undergrad How can we improve asteroid detection to prevent future impacts?

Jan 8, 2014 · Replies 2 · Jan 8, 2014

Replies: 2

Views: 3K

Undergrad Coronal Mass Ejections - Would we be able to

Jan 4, 2014 · Replies 13 · Jan 6, 2014

Replies: 13

Views: 3K

Undergrad How did Kepler know that the time of Mars' orbit was 687 days ?

Jun 12, 2011 · Replies 21 · Jan 2, 2014

Replies: 21

Views: 14K

Undergrad What happens to meteors after they vaporize?

Dec 29, 2013 · Replies 1 · Dec 29, 2013

Replies: 1

Views: 2K

Undergrad All stars in Milky Way equal one square light year?

Dec 21, 2013 · Replies 10 · Dec 28, 2013

Replies: 10

Views: 7K

Undergrad Is Empty Space Truly Void of Energy and Matter?

Dec 21, 2013 · Replies 5 · Dec 24, 2013

Replies: 5

Views: 3K

Undergrad Doppler effect vs expansion effect on wavelength

Dec 22, 2013 · Replies 2 · Dec 22, 2013

Replies: 2

Views: 2K

Undergrad Kepler's 2nd.law and calculation

Dec 20, 2013 · Replies 4 · Dec 22, 2013

Replies: 4

Views: 2K

Undergrad Calculating HZ for Contact Binary Systems

Dec 18, 2013 · Replies 3 · Dec 19, 2013

Replies: 3

Views: 3K

Undergrad How Large Can a Planet be and Still Have Earth's Mass?

Dec 13, 2013 · Replies 11 · Dec 19, 2013

Replies: 11

Views: 3K

Undergrad Satellites in various orbits above the earth exploded?

Dec 17, 2013 · Replies 11 · Dec 18, 2013

Replies: 11

Views: 4K

Undergrad Deteriorating Orbits of Satellites and Objects

Dec 14, 2013 · Replies 2 · Dec 14, 2013

Replies: 2

Views: 3K

Undergrad Planetary Composition: Elements Beyond Silicon, Iron & Carbon

Dec 13, 2013 · Replies 14 · Dec 14, 2013

Replies: 14

Views: 4K

Undergrad Unraveling the Mysteries of Speed: From Particles to Galaxies

Dec 11, 2013 · Replies 7 · Dec 12, 2013

Replies: 7

Views: 3K

Undergrad How Does the Oberth Effect Work?

Nov 8, 2013 · Replies 3 · Dec 8, 2013

Replies: 3

Views: 4K

Undergrad Is constant planetary alignment (syzygy) possible ?

Dec 2, 2013 · Replies 7 · Dec 7, 2013

Replies: 7

Views: 5K

Undergrad How do Planets generate electromagnetic waves?

Dec 1, 2012 · Replies 16 · Dec 3, 2013

Replies: 16

Views: 12K

Undergrad Does the center of the galaxy intersect the ecliptic?

Dec 1, 2013 · Replies 1 · Dec 1, 2013

Replies: 1

Views: 4K

Undergrad Solar eclipse - magnitude and albedo

Dec 1, 2013 · Replies 1 · Dec 1, 2013

Replies: 1

Views: 4K

Undergrad Can a Running Tap Water Basin Be an Analogy for a Black Hole Event Horizon?

Nov 27, 2013 · Replies 6 · Nov 28, 2013

Replies: 6

Views: 5K

Undergrad Gravity, center of planets, stars

Nov 25, 2013 · Replies 5 · Nov 25, 2013

Replies: 5

Views: 3K

Undergrad Cygnus X1: Date of Highest Excursion

Nov 25, 2013 · Replies 3 · Nov 25, 2013

Replies: 3

Views: 3K

Undergrad Calculating Apparent Magnitude of The Moon

Nov 24, 2013 · Replies 1 · Nov 24, 2013

Replies: 1

Views: 4K

Astronomy

Astronomy is the scientific study of celestial objects and phenomena beyond Earth's atmosphere. It encompasses the observation and analysis of stars, planets, galaxies, and other celestial bodies, as well as the broader exploration of the universe's origins, structure, and evolution.

Astronomers employ a variety of tools, including telescopes, satellites, and advanced instrumentation, to gather data and uncover the mysteries of the cosmos. The field addresses questions about the nature of dark matter, the expansion of the universe, and the potential for extraterrestrial life.

Astronomy not only contributes to our understanding of the cosmos but also inspires wonder and curiosity about the vastness and complexity of the universe we inhabit.

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