Astronomy Beta

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Awarded 2596 times.
Semi major axis of an hyperbolic orbit
Awarded 7 hours ago
Exact ecliptic position of Earth and Moon from Mars as photographed by Curiosity Rover?
Awarded 22 hours ago
Earth and moon gravitational ratios and proportionalities
Awarded Jan 18 at 16:27
Can Pluto be seen with the naked eye from Neptune when Pluto and Neptune are closest?
Awarded Jan 18 at 13:25
Significance of astronomical twilight
Awarded Jan 17 at 19:33
Is it true that we see the center of the milky-way for only half of the year?
Awarded Jan 16 at 16:32
Will Earth rotate backwards in the future?
Awarded Jan 15 at 18:55
Surface of the Sun, or Jupiter, etc [duplicate]
Awarded Jan 12 at 22:55
Is there a webpage that shows the night sky but can filter out dim stars?
Awarded Jan 12 at 9:17
Understanding energy loss in a telescope aperture due to atmospheric dispersion
Awarded Jan 11 at 13:04
Does the earth spiral around the sun's movement/motion path?
Awarded Jan 11 at 5:37
What Constellation Is This? (Photo Included)
Awarded Jan 9 at 17:17
How does one go about submitting a name for a newly-discovered lunar crater?
Awarded Jan 8 at 22:34
Why do massive stars not undergo a helium flash
Awarded Jan 8 at 9:50
Can it be assumed that every star in an amateur astrophotograph has been cataloged?
Awarded Jan 6 at 16:37
Calculating the Solar Day of an Exoplanet?
Awarded Jan 5 at 16:28
What does “all stop” mean in reality?
Awarded Jan 5 at 14:55
Computing the over-density of Lyman-alpha emitters
Awarded Jan 5 at 10:06
Can there be planets, stars and galaxies made of dark matter or antimatter?
Awarded Jan 4 at 13:48
Where are Moon's Apogee and Perigee? Do they rotate too?
Awarded Jan 1 at 23:05
How difficult is it for an amateur to discover a new exoplanet or astronomical object?
Awarded Dec 31 '20 at 21:05
How much solid matter is in the observable Universe?
Awarded Dec 31 '20 at 17:51
Comparing Star Formation rate in different galaxies
Awarded Dec 30 '20 at 13:26
Semi-major axis vs. apogee and perigee of orbit
Awarded Dec 29 '20 at 18:02
The role of 'the interference of waves' in VLBIs'
Awarded Dec 29 '20 at 6:57
Has great eyesight been necessary for astronomers?
Awarded Dec 29 '20 at 5:27
Why are most discovered exoplanets heavier than Earth?
Awarded Dec 28 '20 at 17:06
Do some galaxies collide faster than the speed of light?
Awarded Dec 27 '20 at 20:28
Why do astrologers use the “wrong” sign?
Awarded Dec 26 '20 at 23:05
If we stood on the surface of a Jovian moon, Saturn would appear as a dot. Why doesn't Saturn appear like this in a telescope?
Awarded Dec 26 '20 at 15:40
Understanding date of astronomical events
Awarded Dec 26 '20 at 11:20
Problem with Tychonian model of geocentric universe?
Awarded Dec 24 '20 at 12:11
Why is the flux density and amplitude different for galaxies than stars?
Awarded Dec 22 '20 at 14:26
Why is today the shortest day but the solstice is actually tomorrow?
Awarded Dec 22 '20 at 13:06
Is a three body gravitating system doomed to collapse?
Awarded Dec 20 '20 at 10:57
How do scientists differentiate between a total and a partial transit of a planet passing in front of its star?
Awarded Dec 19 '20 at 21:16
What is this constellation?
Awarded Dec 19 '20 at 1:33
What is a typical polar angle of a pulsar beam?
Awarded Dec 18 '20 at 22:12
Does this photo show the “Little Dipper” and “Big Dipper”?
Awarded Dec 17 '20 at 22:32
How to attach binoculars on starwatcher tracker?
Awarded Dec 17 '20 at 1:42
The creation of comets
Awarded Dec 16 '20 at 21:40
Why do we only have one major meteor shower from 3200 Phaethon?
Awarded Dec 14 '20 at 15:40
Is it possible to do planet observation during the day?
Awarded Dec 14 '20 at 14:48
How much light comes from quasars in an AGN?
Awarded Dec 14 '20 at 2:02
Is it possible for a star to return in the main sequence?
Awarded Dec 11 '20 at 10:51
How can I work out longitude and latitude through my telescope?
Awarded Dec 11 '20 at 10:41
Can a laser pointer ruin a long exposure photo?
Awarded Dec 11 '20 at 0:12
Do the axes of rotation of most stars in the Milky Way align reasonably closely with the axis of galactic rotation?
Awarded Dec 9 '20 at 6:56
How are the atomic clocks synchronised between worldwide VLBI telescopes?
Awarded Dec 8 '20 at 18:31
Aligning the equinoxes to the cardinal points on a circular calendar
Awarded Dec 7 '20 at 22:35
Building a floating, ocean-going giant radio telescope?
Awarded Dec 7 '20 at 17:56
What should the mass of a planet be in-order for its escape velocity to be near the speed of light? [duplicate]
Awarded Dec 7 '20 at 5:05
Is the water underneath Europa's ice cap potable?
Awarded Dec 6 '20 at 17:55
How to derive Kepler's 1st Law?
Awarded Dec 5 '20 at 8:34
Why are telescope mirrors nearly flat?
Awarded Dec 5 '20 at 1:43
Does a continuous deformable mirror cause diffuse reflection?
Awarded Dec 3 '20 at 18:25
If an exoplanet transit we are seeing is 13000 light years away, are we seeing a 13000-year-old orbit? [duplicate]
Awarded Dec 3 '20 at 14:26
How to improve the precision in a star's distance
Awarded Dec 3 '20 at 12:51
“Periapsis” or “Periastron”?
Awarded Dec 2 '20 at 6:10
After what time interval do the closest approaches of Mercury to the Earth repeat?
Awarded Dec 1 '20 at 16:26
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