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0 votes

0 answers

2 views

How to find the luminosity of stars from the Gaia DR3 archive?

Shromi

101

asked 10 mins ago

1 vote

1 answer

51 views

Code a scatter plot on a region of the sky with a circle

Austin Shen

11

modified 3 hours ago

2 votes

0 answers

50 views

Why do higher orders in diffracted light show up as shades of one color?

uhoh

30.6k

modified 5 hours ago

3 votes

0 answers

486 views

How does the ESPRESSO Echelle spectrograph fold the spectrum so nicely?

uhoh

30.6k

modified 5 hours ago

3 votes

1 answer

143 views

Is our Galaxy revolving around something

Matt Pitkin

703

modified 6 hours ago

5 votes

2 answers

870 views

Was the total glaciation of the world, a.k.a. snowball earth, due to Bok space clouds?

ProfRob

158k

answered 11 hours ago

13 votes

2 answers

2k views

Are satellites orbiting around earth visible to the naked eye?

James K

127k

modified 11 hours ago

11 votes

1 answer

217 views

In the observed cosmic rays resulting from a supernova, can we expect electrons to arrive before protons?

ProfRob

158k

modified 2 days ago

8 votes

1 answer

1k views

Is Sagittarius A* smaller than we might expect given the mass of the Milky Way?

ProfRob

158k

modified 2 days ago

6 votes

2 answers

828 views

What is the significance of the intersection in the analemma?

Kurt Stammberger

11

answered 2 days ago

8 votes

1 answer

773 views

Is our central black hole actually at the CG of the galaxy?

Peter Erwin

18.1k

modified Sep 15 at 0:46

1 vote

1 answer

106 views

What difference does it make to a Galaxy if the central black hole spins at an angle to the galactic plane?

Anders Sandberg

15.4k

answered Sep 14 at 13:27

7 votes

2 answers

1k views

Why would galaxies (and galaxy clusters) be unaffected by the expansion of space?

Angel Torregrosa

1

modified Sep 14 at 9:49

0 votes

1 answer

116 views

Is it possible that we are part of a relatively small object adjacent to a very large one?

James K

127k

answered Sep 13 at 19:51

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How to find the luminosity of stars from the Gaia DR3 archive?

Code a scatter plot on a region of the sky with a circle

Why do higher orders in diffracted light show up as shades of one color?

How does the ESPRESSO Echelle spectrograph fold the spectrum so nicely?

Is our Galaxy revolving around something

Was the total glaciation of the world, a.k.a. snowball earth, due to Bok space clouds?

Are satellites orbiting around earth visible to the naked eye?

In the observed cosmic rays resulting from a supernova, can we expect electrons to arrive before protons?

Is Sagittarius A* smaller than we might expect given the mass of the Milky Way?

What is the significance of the intersection in the analemma?

Is our central black hole actually at the CG of the galaxy?

What difference does it make to a Galaxy if the central black hole spins at an angle to the galactic plane?

Why would galaxies (and galaxy clusters) be unaffected by the expansion of space?

Is it possible that we are part of a relatively small object adjacent to a very large one?

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