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1 answer
150 views

how to make postage stamps of galaxies

-2 votes
1 answer
94 views

How fast is Andromeda approaching in miles per hour

3 votes
2 answers
113 views

Spiral Galaxies

0 votes
0 answers
41 views

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1 vote
0 answers
58 views

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6 votes
2 answers
691 views

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1 vote
1 answer
76 views

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4 votes
4 answers
711 views

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13 votes
1 answer
3k views

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1 vote
1 answer
86 views

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1 vote
1 answer
70 views

Gas mass and velocity in galaxy

2 votes
7 answers
5k views

Could a galaxy be the sun of a planet?

2 votes
1 answer
98 views

Measuring magnitudes in ds9

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32 views

calculating mass of galaxy from luminosity

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