Top Questions

1 vote
0 answers
8 views

Open problems in astronomy that a BSc. could contribute / attempt to solve?

1 vote
1 answer
23 views

Orion constellation shape

1 vote
2 answers
42 views

Unreasonable ratios in astronomy as ways of remembering

5 votes
0 answers
54 views
+100

Finding stars that would be visible from satellite

2 votes
3 answers
224 views

Is there evidence against a Universe Black Hole?

8 votes
5 answers
3k views

Why don't we just unshift the IR photos from Webb?

2 votes
2 answers
1k views

What if hypothetically Ton 618 could have been a star

11 votes
2 answers
3k views

Is there an upper limit to the mass of terrestrial planets?

7 votes
1 answer
150 views

Area of Influence of Lagrange points?

7 votes
2 answers
3k views

Is there a word for an object orbiting a brown dwarf?

4 votes
1 answer
387 views

What will it take to start measuring the rotation rate and direction of exoplanets? Which instrument(s) current or future are most likely to do it?

20 votes
4 answers
3k views

Is it coincidence that the earth's rotation and revolution are in the same direction?

0 votes
0 answers
59 views

My question is about the warp of time and space near black holes

11 votes
1 answer
1k views

Why was the standard distance set to 10 parsec and not simply to 1 parsec?

5 votes
0 answers
79 views
+100

Attempting to plot solar terminator using Python and Skyfield library

1 vote
2 answers
83 views

Calculate geographical location (latitude, longitude) from horizontal and equatorial coordinates, date and UT

4 votes
1 answer
116 views

What is the biggest magnitude (faintest light possible) seen by JWST?

1 vote
0 answers
59 views

About telescope load

1 vote
0 answers
23 views

Where can I find archived ESO/KMOS Science Verification datacubes?

1 vote
0 answers
69 views

How do I estimate uncertainties in mass function?

1 vote
1 answer
79 views

How can I join as contributor to open source code on GitHub? [closed]

0 votes
2 answers
104 views

Light/Dark energy/Dark matter

2 votes
0 answers
91 views

What are These Strange Lines in my Catalog Data?

3 votes
1 answer
302 views

Redshift distance proportionality at high Z and need for "mighty mouse" galaxies?

4 votes
0 answers
140 views

'Star' appeared dimmer and dimmer over multiple days before disappearing. What could this have been?

5 votes
2 answers
4k views

Is spacetime hyperbolic?

1 vote
3 answers
853 views

Is our universe flat?

10 votes
3 answers
8k views

Is there anything currently 46 billion light years away from Earth that we can see?

1 vote
0 answers
82 views
+100

How well are planetary formation models (e.g., determining $\mathrm{\dot{M}_{planet}}$) understood in 2024?

16 votes
1 answer
3k views

How are we observing the newly discovered "dark galaxy" J0613+52, if it has no stars and is so far away from other galaxies?

4 votes
2 answers
285 views

Elevation difference of analemmas' taken at different hours and the reason for the tendency of analemmas' being slanted with deviation from the noon

3 votes
1 answer
326 views

Modern equivalent of Astronomical Algorithms by Jean Meeus?

4 votes
4 answers
4k views

Is phys.org/space-news reliable source?

2 votes
1 answer
139 views

How bright in the night sky would J0529-4351 (brightest quasar ever found) be if it were in our galaxy?

0 votes
0 answers
19 views

Deriving Faber-Jackson Relation from Milgrom's Law

1 vote
0 answers
39 views

How do changing binary separation and Roche Lobe size of the donor affect the long-term evolution of a binary under conservative mass transfer?

6 votes
3 answers
2k views

How do we work out the light travel time on a cosmic scale?

21 votes
2 answers
3k views

Does seeing a gravitationally lensed/magnified galaxy imply that they could also see us as well?

8 votes
3 answers
2k views

Would be possible to detect Planet Nine as a microlensing event along the line of its projected orbit?

1 vote
0 answers
19 views

How to determine semiamplitude from Julian Date data?

1 vote
0 answers
31 views

Is this description of ecliptic times correct?

1 vote
1 answer
65 views

Can anyone check my code that converts RA/DEC to galactic coordinates?

1 vote
0 answers
59 views

Calculation of twilight sky surface brightness based on object's apparent magnitude

6 votes
0 answers
84 views

Where will all atoms on the Earth end up when the Sun engulfs the earth?

5 votes
0 answers
114 views

Why do double neutron stars remain bounded?

-3 votes
0 answers
107 views

Do the stars on the mantle match some constellations? [closed]

21 votes
3 answers
6k views

How often do Type Ia supernovae occur?

17 votes
1 answer
3k views

How do I know it is safe to remove eclipse glasses when viewing a total solar eclipse?


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