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Astronomy

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Answer a question with score of 1 or more.
Awarded 2520 times.
Mysterious factor of 30 in Coulomb cross section for electron–electron collisions
Awarded Feb 7 at 19:46
Elevation difference of analemmas' taken at different hours and the reason for the tendency of analemmas' being slanted with deviation from the noon
Awarded Feb 6 at 16:41
(post deleted or otherwise unavailable)
Awarded Feb 6 at 14:04
First photographic image taken with telescopes to produce astronomically useful results? What telescope was used?
Awarded Feb 5 at 9:11
What simulator would I use to create an image of what our solar system looks like from Alpha Centauri?
Awarded Feb 3 at 13:36
(post deleted or otherwise unavailable)
Awarded Jan 31 at 22:56
Error when calculating Alt/Az from Ra/Dec
Awarded Jan 29 at 14:43
Is there any habitable exoplanet close to Earth?
Awarded Jan 27 at 6:26
How do I get cross-verification data for Gaia DR3?
Awarded Jan 27 at 3:27
What "external illumination" source causes the heating of a quasar's accretion disc?
Awarded Jan 25 at 7:58
Do solstices and equinoxes shift over time?
Awarded Jan 23 at 1:47
Why do these two sources list different values for the Solar axial tilt to the ecliptic and Earth's orbital inclination to the Solar equator?
Awarded Jan 21 at 10:41
Why would a black hole have a disk, but not emit x-rays?
Awarded Jan 19 at 10:35
What is the meaning or information given by the solar image at 4500Å?
Awarded Jan 18 at 18:11
How to Determine Absolute Magnitude of a Galaxy using HST FITS Image
Awarded Jan 13 at 1:06
Big bang cosmology
Awarded Jan 12 at 17:10
Big bang cosmology
Awarded Jan 12 at 14:28
Human Brightness perception and contrast
Awarded Jan 8 at 14:06
Are there any bright *main-sequence* K-type stars in the night sky? Or are all of them giants?
Awarded Jan 8 at 4:55
How to identify stars in photographs?
Awarded Jan 7 at 2:10
Why nobody cares to give the nearest stars better names?
Awarded Jan 6 at 22:08
Is there a simple way to get $T_{\mathit{eff}}$ estimates for Gaia EDR3?
Awarded Jan 5 at 13:08
Why are there gaps in the size distribution of solar system moons?
Awarded Dec 29, 2023 at 14:48
κ₀ for Mercury—Formula
Awarded Dec 27, 2023 at 17:35
Which citizen science occultation experiences were done in the late 80's in the US? With what results?
Awarded Dec 27, 2023 at 16:50
Relationship between Roche limit and Hill sphere?
Awarded Dec 26, 2023 at 15:06
Why can I see sometimes a horizontal half moon instead of a vertical one?
Awarded Dec 21, 2023 at 14:10
Are multiple stars actually more common than singles?
Awarded Dec 19, 2023 at 11:58
(post deleted or otherwise unavailable)
Awarded Dec 14, 2023 at 22:16
(post deleted or otherwise unavailable)
Awarded Dec 13, 2023 at 14:42
How can Deep MOND regime apply inside a star?
Awarded Dec 11, 2023 at 13:12
What would happen if a small black hole fell into a star?
Awarded Dec 7, 2023 at 3:21
At the intersection of engineering and astronomy in its structure as a scientific discipline
Awarded Dec 7, 2023 at 0:41
What would happen if a small black hole fell into a star?
Awarded Dec 6, 2023 at 16:08
The star that created our sun
Awarded Dec 6, 2023 at 14:56
Strong orange line in wood fire spectrum?
Awarded Dec 4, 2023 at 19:05
How to predict the radius of a Red giant
Awarded Dec 3, 2023 at 8:42
Is it possible to achieve a stable "selenostationary" orbit around the Moon?
Awarded Nov 30, 2023 at 21:41
Is Venus' north towards Earth's south
Awarded Nov 29, 2023 at 7:03
What is the ring of light around the moon and which star seen near it?
Awarded Nov 27, 2023 at 1:12
Why is it impossible to infer the surface temperature of Venus by spectroscopy observation from earth?
Awarded Nov 25, 2023 at 22:55
What is the ring of light around the moon and which star seen near it?
Awarded Nov 25, 2023 at 19:57
Gravitational waves vs. "normal gravity"
Awarded Nov 21, 2023 at 20:19
Moon path diagram for a location
Awarded Nov 19, 2023 at 14:10
Could the human body feel the sudden disappearance or end of a gravitational force?
Awarded Nov 17, 2023 at 21:50
Could the human body feel the sudden disappearance or end of a gravitational force?
Awarded Nov 17, 2023 at 8:48
(post deleted or otherwise unavailable)
Awarded Nov 12, 2023 at 4:42
(post deleted or otherwise unavailable)
Awarded Nov 11, 2023 at 23:51
(post deleted or otherwise unavailable)
Awarded Nov 5, 2023 at 18:15
Formula to Determine When a Target Reaches a Specific Altitude
Awarded Oct 29, 2023 at 11:27
Does the Oort cloud have any large holes in it and if not does this mean nothing large has entered the solar system for a long time?
Awarded Oct 26, 2023 at 21:37
Why does the sun appear on the screen behind an eyepiece when doing solar projection?
Awarded Oct 25, 2023 at 13:37
Why does the planet Saturn have numerous (62) moons compared to the rest of the planets in the Solar System?
Awarded Oct 24, 2023 at 19:34
is there any site with historical radiotelescope data about observations 21 cm line Hydrogen (1.42 GHz)?
Awarded Oct 21, 2023 at 9:47
How much does the eccentricity of EARTH'S orbit effect the length of the synodical lunar month?
Awarded Oct 18, 2023 at 5:04
Which star system has the highest multiplicity (# of stars), whose orbits are known for all stars?
Awarded Oct 13, 2023 at 0:27
Measuring magnitudes in ds9
Awarded Oct 9, 2023 at 10:55
Why can't a half-illuminated planet support life at all?
Awarded Oct 8, 2023 at 7:42
Error in "Efficient Method for Calculating the time of Sunrise and Sunset" by Robin G Stuart
Awarded Oct 4, 2023 at 10:35
Amateur astronomy plan for GCSE students
Awarded Oct 3, 2023 at 10:11
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