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Astronomy

Notable Question

 Notable Question
Question with 2,500 views. This badge can be awarded multiple times.
Awarded 1701 times.
How to correct observed flux densities for redshift
Awarded Nov 29 at 13:32
Finding the radius of a star in arcsec
Awarded Nov 28 at 21:16
Solar Azimuth angle Derivation
Awarded Nov 28 at 19:25
Am I correct in assuming during the merger with the Milky Way the structure of the Andromeda Galaxy will not be visible to the naked eye?
Awarded Nov 26 at 21:56
Star power: How can we understand nuclear chemistry at millions of degrees when we can't do that experiment? Because the math predicts observations?
Awarded Nov 26 at 15:21
Is Pluto a "proto-planet"?
Awarded Nov 25 at 20:28
What are the correct positions or alignment of planets in relation to each other and the Sun, is it vertical center, baseline or completely random
Awarded Nov 24 at 15:26
Why aren't there square astronomical units or square light years?
Awarded Nov 22 at 21:49
When a protoplanet falls toward the Sun, even from a billion miles, how could it ever be flung out of the Solar System?
Awarded Nov 20 at 23:52
Help me better understand how the plane of Moon's orbit around Earth behaves
Awarded Nov 18 at 21:41
What color is a red dwarf star?
Awarded Nov 18 at 18:41
Why is it strange that outer stars in a galaxy are travelling with the same speed as inner while the total mass is also increasing?
Awarded Nov 16 at 6:47
When a star reaches the red giant phase, why does it become more opaque?
Awarded Nov 14 at 16:19
What is the density profile within the Sun's photosphere? Which one of these is wrong?
Awarded Nov 13 at 20:41
How strong is the force between the Sun and the centre of the Milky Way?
Awarded Nov 11 at 17:14
Confused about what an orbit means now
Awarded Nov 5 at 10:41
What is the actual black hole merger speed?
Awarded Nov 2 at 16:36
How much of the time does the gravitational-wave detector network operate?
Awarded Oct 30 at 3:33
How does one convert between Modified Julian Date (MJD) and a standard (mm/dd/yr, hr:mm:ss)
Awarded Oct 25 at 19:27
Astronomical data convertion from Jy/pixel to MJy/sr?
Awarded Oct 24 at 16:36
What kind of effects would two moons have on an earthlike planet?
Awarded Oct 22 at 12:55
Does the universe expand at the same rate everywhere in the universe?
Awarded Oct 22 at 4:55
Formula to calculate B-V index? [duplicate]
Awarded Oct 21 at 16:55
How big a dish do I need for radio astronomy?
Awarded Oct 19 at 1:37
How did Johannes Kepler figure out the radius of each planet’s orbit?
Awarded Oct 18 at 3:09
Why does Jupiter spin so fast but not the Sun?
Awarded Oct 14 at 22:34
How many galaxies disappear beyond the Hubble Bubble horizon every year now? [duplicate]
Awarded Oct 14 at 6:52
Why are blue stars the hottest? [duplicate]
Awarded Oct 14 at 6:40
How loud would a black hole be?
Awarded Oct 11 at 19:33
When did scientists discover that the Sun has a life cycle and that it is going to die?
Awarded Oct 11 at 16:16
Apparent magnitude of Milky Way?
Awarded Oct 9 at 21:12
How do I phase fold the light curve for a variable star?
Awarded Oct 9 at 0:08
Would a spacecraft just go "through" a gas giant?
Awarded Oct 7 at 15:07
Why the blank wedges in this very early 21 cm map of the Milky Way? (Oort et al. 1958)
Awarded Oct 5 at 14:08
How to calculate exact angle to the moon?
Awarded Sep 26 at 18:28
Is there a way to find polar star after identifying Orion's belt?
Awarded Sep 26 at 2:08
What factors influence the Widmanstätten pattern in iron meteorites?
Awarded Sep 25 at 17:14
calculate the absolute and apparent magnitude for a binary star system
Awarded Sep 24 at 22:16
Changing Appearance of the Moon During a Single Night
Awarded Sep 24 at 15:05
Why isn't a month 28 days?
Awarded Sep 24 at 0:50
How to calculate solar coordinates. (Right Ascension, Declination, and ultimately the Altitude and Azimuth of the Sun)
Awarded Sep 23 at 2:28
Why is the terminator line not orange-red in photos from space?
Awarded Sep 21 at 22:56
Was the total glaciation of the world, a.k.a. snowball earth, due to Bok space clouds?
Awarded Sep 20 at 3:37
The moon in the first phase visible in the sky is tilted
Awarded Sep 19 at 12:13
Calculate Distance To Stars
Awarded Sep 18 at 12:40
Local Standard Time Meridian - LSTM (Units)
Awarded Sep 18 at 4:47
What are the last images from the Galileo orbiter before impacting Jupiter?
Awarded Sep 16 at 19:30
Why isn't the constellation of that month's zodiac prominent or even visible during that month?
Awarded Sep 13 at 19:36
Which eyepiece should I use to view planets with a Slokey Skyways 50080 telescope?
Awarded Sep 13 at 14:11
I want to be a observational astronomer, but have no idea where to start
Awarded Sep 11 at 13:20
How high does the ocean tide rise every 90 minutes due to the gravitational pull of the space station?
Awarded Sep 9 at 15:45
What distance has the moon been from earth at the closest?
Awarded Sep 6 at 3:21
Word for blue ring around the Earth
Awarded Aug 29 at 13:04
Why is Enceladus's albedo greater than 1?
Awarded Aug 29 at 5:36
Is "intrastellar" commonly used by astronomers to refer to objects within our solar system?
Awarded Aug 27 at 6:17
Can a star be made of sun spots?
Awarded Aug 25 at 3:37
Calculate position of the Sun in ECEF
Awarded Aug 24 at 4:07
Can Pluto and Neptune collide anytime in future? [duplicate]
Awarded Aug 19 at 15:22
Edu-Science telescope
Awarded Aug 17 at 16:19
How can I differentiate between Jupiter and Venus in the sky?
Awarded Aug 15 at 10:15
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