Astronomy Beta

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 Popular Question
Question with 1,000 views. This badge can be awarded multiple times.
Awarded 1948 times.
Interstellar Dust properties
Awarded 12 hours ago
Is Jupiter's Red Spot “locked in place” or does it move around?
Awarded 2 days ago
Why do gravitational waves travel “only” at the speed of light but the gravitational scalar potential is instantaneous?
Awarded Jul 28 at 17:03
How was the distance from the Earth to the Sun determined
Awarded Jul 25 at 13:20
Why are there not yet any instruments dedicated to registering time dilation caused by passing gravitational waves?
Awarded Jul 23 at 15:56
What is the probability of life having developed or going to develop in our solar system another time?
Awarded Jul 23 at 2:43
Is oxygen an alpha element?
Awarded Jul 22 at 16:41
If we lived in a multiverse, what would our universe most likely then be named? [closed]
Awarded Jul 22 at 9:04
Given a star's ra, dec how can I compute one pair of lat, long and time where the star would be at zenith?
Awarded Jul 22 at 2:36
Would we have spotted the ascent stage of Apollo 11's Eagle if it was still in orbit around the Moon?
Awarded Jul 21 at 4:10
If a black hole was headed for our solar system and would arrive within a year, would we necessarily know of it?
Awarded Jul 20 at 12:11
Distance between stars Epsilon Eridani and Tau Ceti?
Awarded Jul 20 at 12:04
What it the outer part of the sun, that we see with our eyes, called?
Awarded Jul 19 at 15:12
Is a year really 365.24 days, or is it 365.2564 days like I remember?
Awarded Jul 19 at 0:10
How are rogue planets discovered?
Awarded Jul 17 at 17:47
Could rogue planets harbor life?
Awarded Jul 16 at 1:48
What if Earth gained 1 km/s orbital velocity?
Awarded Jul 14 at 18:45
How can a black hole have a charge, or be charged?
Awarded Jul 13 at 9:26
Motion of rogue planets
Awarded Jul 13 at 0:35
What are the benefits of collecting asteroid samples in situ rather than just waiting for bits of asteroids to fall as meteorites?
Awarded Jul 12 at 7:36
Difference between J2000, FK5 and ICRS coordinate systems? Which one does the Yale Bright Star Catalog use?
Awarded Jul 11 at 0:16
Why do pictures of the Milky Way look like a spiral?
Awarded Jul 10 at 9:26
Intuitive explanation of the source of energy that cause Jupiter and Saturn to migrate outward in the Grand Tack Hypothesis?
Awarded Jul 9 at 13:41
Why aren't there any images of Sun-orbiting bodies by Spitzer?
Awarded Jul 7 at 13:05
Is there a clear-cut difference between rocky and gaseous planets?
Awarded Jul 7 at 9:33
How does making a refracting telescope very long reduce the chromatic aberration of an uncorrected lens?
Awarded Jul 6 at 21:12
Why is there a mountain inside the Herschel crater on Mimas?
Awarded Jul 5 at 12:56
Black Holes: More Than One Entry Point?
Awarded Jul 2 at 18:22
Are Brown and Sub-Brown Dwarfs secretly more common than stars?
Awarded Jul 2 at 13:04
Sidereal time calculation
Awarded Jul 2 at 8:16
What makes the Earth infinitely rotating around its axis
Awarded Jun 30 at 9:56
What are the aberrations of an SCT? And how can they be eliminated?
Awarded Jun 29 at 21:22
How far into the future can we go by traveling close to a black hole?
Awarded Jun 29 at 21:04
Finding the radius of an eccentric orbit at any point
Awarded Jun 28 at 22:15
Are there non-rotating objects in the universe?
Awarded Jun 28 at 11:04
Why doesn't the Sun wobble towards Jupiter instead of away from Jupiter?
Awarded Jun 28 at 6:41
Recurrence of Moon at Virgo's “feet”
Awarded Jun 27 at 12:31
Are there only $10^{83}$ atoms in the universe?
Awarded Jun 27 at 1:02
What are the advantages of refractor telescopes over reflector telescopes?
Awarded Jun 26 at 19:31
Is intrastellar commonly used by astronomers to refer to objects within our solar system?
Awarded Jun 26 at 13:22
Why would the Earth's solar analemma would be still a figue eight even if Earth's orbit was circular?
Awarded Jun 24 at 18:26
What exactly is a “moon”?
Awarded Jun 24 at 4:35
How does the Milky Way look like above 66° North and below 66° South?
Awarded Jun 23 at 15:17
What was James Bradley's calculation to calculate the speed of light?
Awarded Jun 22 at 13:21
If we replaced the Moon with Ceres, how close would Ceres have to orbit to cause the same tides?
Awarded Jun 22 at 9:55
How massive does a main sequence star need to be to go type 1 supernova?
Awarded Jun 22 at 1:51
Undiscovered dwarf planets
Awarded Jun 21 at 13:56
Why do sunspot rise in number “precisely” every eleven years?
Awarded Jun 21 at 10:25
Is the moon's revolution speed increasing or decreasing
Awarded Jun 21 at 6:40
Can a small black hole orbit a large star?
Awarded Jun 19 at 23:25
Do we get any benefit from being in a galaxy?
Awarded Jun 17 at 23:27
If earth changed its orbit, what would happen to the moon?
Awarded Jun 16 at 6:46
Why does the solar analemma have a strange shape on Jupiter?
Awarded Jun 15 at 13:58
Why are there no green stars?
Awarded Jun 15 at 12:45
How are constellations intact if the stars are rotating around galactic nuclei?
Awarded Jun 14 at 8:57
When we say a galaxy is 200 million light years away, does this account for the expansion of space in the time it took it's light to reach us?
Awarded Jun 13 at 6:51
Why doesn't the Sun produce an emission spectrum?
Awarded Jun 10 at 18:34
How to calculate the moon phase angle?
Awarded Jun 10 at 17:08
Is it suspicious that gravitational waves propagate at the speed of light?
Awarded Jun 10 at 14:32
Is it a coincidence that on the far side of the moon almost no seas are visible?
Awarded Jun 9 at 12:18
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