Astronomy Beta

Revival

 Revival
Answer more than 30 days after a question was asked as first answer scoring 2 or more. This badge can be awarded multiple times.
Awarded 396 times.
Given a date obtain latitude and longitude where is the sun zenith
Awarded Jan 8 at 20:56
Do Enceladus' geysers fall back to its surface or do they achieve escape velocity?
Awarded Jan 7 at 9:05
Are there any estimates for the combined mass of all near earth objects (NEOs)?
Awarded Jan 5 at 7:21
What was the absolute limit to the possible sizes of the first stars formed from “primordial material with no metals”?
Awarded Jan 1 at 16:45
What was the absolute limit to the possible sizes of the first stars formed from “primordial material with no metals”?
Awarded Jan 1 at 10:46
Is there any difference between M87's image and predictions?
Awarded Dec 30 '20 at 20:57
What percentage of galaxies rotate with trailing arms?
Awarded Dec 30 '20 at 18:48
Moon equatorial coordinates
Awarded Dec 30 '20 at 17:46
Does lightning on Venus affect the chemical composition of the clouds?
Awarded Dec 25 '20 at 0:11
How to determine arrival time delay given dispersion measure?
Awarded Dec 21 '20 at 19:05
Is there any formulae to calculate whether the sun will depress 18 degrees or more below the horizon on a certain day / location?
Awarded Dec 21 '20 at 17:04
Counter clockwise rotation of storms at Jupiter's north pole. What explanations have been proposed?
Awarded Dec 20 '20 at 9:18
Is 486958 Arrokoth (2014 MU69 aka Ultima Thule) the only solar-system object determined to be binary by occultation?
Awarded Dec 9 '20 at 5:40
How are the atomic clocks synchronised between worldwide VLBI telescopes?
Awarded Dec 7 '20 at 12:48
How can cosmological bubble universes “collide” with each other?
Awarded Dec 7 '20 at 9:34
When does a solar eclipse become noticeable?
Awarded Dec 2 '20 at 14:41
Is the wind's intensity on Mars similar to Earth?
Awarded Dec 1 '20 at 23:10
What percentage of a lunar meteor strike is blown back into space?
Awarded Nov 30 '20 at 7:37
How does the gravitation of Jupiter or other big planets affect Kepler's third law?
Awarded Nov 29 '20 at 21:41
Mystery CCD camera
Awarded Nov 28 '20 at 19:05
How can Mercury's sodium tail be imaged?
Awarded Nov 26 '20 at 21:05
Help understanding the false MRO observations of hydrated minerals on Mars
Awarded Nov 25 '20 at 8:41
How to get the longitude of the perihelion to find the Heliocentric Equatorial coordinates of a planet
Awarded Nov 24 '20 at 3:16
How bright can white dwarf stars glow as they accrete matter?
Awarded Nov 18 '20 at 0:05
What are Kepler's laws (as he wrote them)?
Awarded Nov 15 '20 at 21:57
What is the farthest reported distance from observer from which a solar system body has occulted a star?
Awarded Nov 13 '20 at 7:46
How often are supernovas visible by the naked eye from Earth?
Awarded Nov 13 '20 at 2:51
Is there a simple, analytical formula for the lunar phase brightness curve?
Awarded Nov 7 '20 at 8:18
Is this object an asteroid or comet, and how can it produce so many tails?
Awarded Nov 6 '20 at 9:32
How does ALMA produce stable, mutually coherent ~THz local oscillators for all of their dishes?
Awarded Nov 3 '20 at 11:56
How to calculate the point on the globe with maximum magnitude with given Besselian elements and given time for a partial solar eclipse?
Awarded Oct 24 '20 at 8:37
Why is the great red spot shrinking?
Awarded Oct 22 '20 at 14:00
Why was helium hydride (HeH+) the universe's first molecule?
Awarded Oct 14 '20 at 3:25
What is the organic material in Saturn's rings?
Awarded Oct 5 '20 at 3:32
Why aren't there blue elliptical galaxies or yellow spiral galaxies?
Awarded Sep 28 '20 at 7:02
What was the field of view of the Ohio State University Radio Observatory of Wow! signal fame?
Awarded Sep 24 '20 at 15:34
Why are tides biggest during the equinoxes?
Awarded Sep 21 '20 at 21:34
Did I see a meteor or a re-entry?
Awarded Sep 19 '20 at 13:41
Has THC been detected in space?
Awarded Sep 3 '20 at 16:11
The drift of the Moon's equatorial rotation velocity
Awarded Sep 1 '20 at 1:10
What is the actual visual characteristics of a black hole?
Awarded Aug 30 '20 at 0:25
Is solar wind a source of water?
Awarded Aug 18 '20 at 12:26
How to calculate local position, knowing the RA and Dec of the center of an image, RPY of the camera, and precise time?
Awarded Aug 7 '20 at 16:25
How does gas in accretion disks of supermassive black holes create orbital torques on smaller black holes within the disks causing them to migrate?
Awarded Aug 7 '20 at 3:34
Saint-Exupery describes visit to plateau where he easily finds several meteorites. Is this realistic?
Awarded Aug 2 '20 at 23:47
Why did the moon have a distinct reddish edge tonight?
Awarded Jul 31 '20 at 14:26
What exactly is a “conclusive association” in Astronomy?
Awarded Jul 26 '20 at 8:36
Can the period of the planet transit across the sun be calculated in the same way the eclipse year is?
Awarded Jul 21 '20 at 23:35
How much of a molecular cloud can end up as “starstuff”?
Awarded Jul 21 '20 at 14:04
Where do the symbols $\lambda$ and $\beta$ come from for celestial latitude and longitude?
Awarded Jul 21 '20 at 13:10
Is there any thing special with an axial tilt of roughly 25°?
Awarded Jul 21 '20 at 2:35
Was the “green star” event in NGC 3314 ever figured out or named?
Awarded Jul 20 '20 at 1:46
Which kind of strategy should we take to discover Planet 9 and other KBOs?
Awarded Jul 11 '20 at 4:26
Do stars have “radio photospheres”? Are they different from their optical photospheres?
Awarded Jul 10 '20 at 14:04
Are lunar occultations visible to the naked eye?
Awarded Jun 28 '20 at 2:16
How to calculate the moon phase angle?
Awarded Jun 23 '20 at 15:06
Is Optical VLBI theoretically feasible? If not why not?
Awarded Jun 19 '20 at 12:07
What would it take to capture a passing asteroid or other celestial body into Earth's orbit?
Awarded Jun 17 '20 at 10:10
How Are Radioactive Decay Rates Influenced by Neutrinos - On Earth and Other Dense Planets
Awarded Jun 11 '20 at 15:41
What is the nature of “rock vapor” in this description of the formation of the Moon?
Awarded Jun 7 '20 at 21:41
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