Top Questions

0 votes
1 answer
20 views

Rectification of M-type spectra

5 votes
1 answer
486 views

Can an astronomer fully work remotely? [closed]

3 votes
0 answers
62 views

Are these craters on the moon during eclipse

16 votes
2 answers
5k views

Why is there a year 1 B.C., a year 0, and a year 1 A.D. in NASA’s Five Millennium Canon of Solar Eclipses?

-1 votes
0 answers
23 views

Looking straight through the Milky Way Galaxy with the Gedanken Space Telescope from radio to 100 keV, what would the opacity vs wavelength look like?

5 votes
1 answer
185 views

Relative inclination with respect to line of sight

2 votes
0 answers
59 views

Closest/farthest point where the sun stops being the brightest star?

30 votes
2 answers
4k views

How precise are future Solar eclipse timing, path and dates, what could change timing/path?

1 vote
0 answers
27 views

Which of the blocked radiation windows will (mostly) open if one where to observe from the surface of Mars, instead of the Earth?

3 votes
1 answer
35 views
+100

Double Schechter luminosity function for the Milky Way

1 vote
0 answers
40 views

Has anyone attributed a specific Baily's bead to a specific feature on the Moon? If so, when was this first done?

10 votes
4 answers
2k views

Why are the solar prominences visible during a total solar eclipse - orange? Is the sun orange?

3 votes
2 answers
274 views

The sun path angle of elevation

0 votes
3 answers
89 views

How long would a day be in an earth like - same size and all - planet but with double earth's orbit in time

15 votes
2 answers
5k views

What caused pink flares during the eclipse

1 vote
2 answers
78 views

Is It Possible to See the Sun's Corona Appearing to Flare Out From Behind the Moon During a Total Solar Eclipse?

2 votes
2 answers
101 views

What exactly was "The curse of Sisyphus" and why did it take so long to find out about the radar detection of its companion?

2 votes
1 answer
55 views

Inconsistency between Horizons data retrieved via Astroquery and Horizons web interface

4 votes
4 answers
2k views

What is the apparent size of the Earth and Sun from Moon

1 vote
1 answer
52 views

What causes the short term variation in the length of a march-equinox year

2 votes
1 answer
134 views

A couple of questions on Hawking radiation

1 vote
1 answer
84 views

What is the explanation for discrepancies in RA values at Santa Maria Degli Angeli e dei Martiri in Rome

3 votes
1 answer
478 views

Measure the radius of the earth using the sun?

2 votes
0 answers
45 views

How to identify Hydrogen lines of slitless spectrograph of Type A9 star

-1 votes
0 answers
65 views

Does the minus sign in the path width section on NASA’s Five Millennium Canon of Solar Eclipses have any meaning?

2 votes
1 answer
56 views

Eclipse phenomena in annular vs partial solar eclipses

16 votes
9 answers
10k views

Why is it ok for people to be saying that dark matter makes up x amount of the universe when we don't know what it is?

6 votes
5 answers
2k views

What are the best options for watching total or partial solar eclipse during bad weather conditions?

5 votes
7 answers
3k views

The darkness that is equivalent to the block of 99.5% of the sun

0 votes
0 answers
29 views

Is it possible for both transition points in a hybrid eclipse to occur so close together they can be seen from the same spot on earth?

0 votes
0 answers
26 views

Is there a known magnitude of the sun that needs to be covered for the diamond ring effect or Bailey’s beads to occur?

0 votes
0 answers
38 views

How can I convert luminosity from [erg/s/Hz] to [erg/s]

0 votes
0 answers
22 views

Is there any way to know how much time of totality is experienced during a hybrid eclipse in NASA’s 5 Millennium Canon of Solar Eclipses?

0 votes
2 answers
147 views
+50

Shadow Bands: How can atmospheric turbulence obscure the sun-crescent immediately before a total solar eclipse? and why are they 'bands'?

-3 votes
0 answers
60 views

Small red light around 60k feet [closed]

1 vote
1 answer
32 views

Convert GPS Week and GPS Time of Week to J2000?

4 votes
1 answer
118 views

Extend CDF to physical range

2 votes
0 answers
38 views
+50

Is angular velocity of line of apsis equal to $\frac{d\omega}{dt}$ or $\frac{d\varpi}{dt}$ or something else?

4 votes
1 answer
898 views

Can Neutron Star merger remnants solve the black hole mass gap? Why can't we observe them?

0 votes
1 answer
14k views

Is it safe to view a solar eclipse with the naked eye during totality?

3 votes
1 answer
140 views

Is the Moon really oscillating around its orbit as seen from Earth?

4 votes
0 answers
90 views

Unknown satellite transit during solar eclipse on April 8, 2024

5 votes
3 answers
2k views

Is the gravitational constant really constant over our Universe?

13 votes
1 answer
1k views

Can stars form in the stellar halo?

2 votes
4 answers
634 views

Can emergency blanket material be used for making a homemade solar filter for a digital camera?

1 vote
1 answer
61 views

What would the orbit diameter of the Moon be for an 'eclipse free' orbit period?

3 votes
0 answers
92 views

Sun and moon same angular radius - how unlikely is this?

3 votes
3 answers
3k views

What is this celestial phenomenon in the video?


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