User NeutronStar - Astronomy Stack Exchange

21 votes

5 answers

16k views

What does forward modeling mean?

asked Jan 9, 2017 at 20:04

11 votes

2 answers

587 views

Recommendation for introductory cosmology text

asked May 28, 2014 at 17:10

10 votes

4 answers

2k views

Red Moon a Characteristic of all Total Lunar Eclipses?

asked Apr 15, 2014 at 19:37

9 votes

1 answer

3k views

What can be seen with a 4.5" telescope

asked Dec 18, 2013 at 23:18

9 votes

2 answers

10k views

Difference between quasar and Active Galactic Nuclei?

asked Aug 11, 2014 at 18:59

9 votes

2 answers

360 views

How did the Mars satellites "take cover" from the recent comet flyby?

asked Oct 20, 2014 at 17:30

9 votes

1 answer

530 views

What is the brightest star (relative magnitude) in M31?

asked Sep 28, 2015 at 22:06

7 votes

1 answer

1k views

Why does higher surface gravity broaden spectral lines?

asked May 2, 2017 at 20:58

7 votes

1 answer

398 views

Should I drop source shot noise from the SNR calculation when all I care about is detection (not photometric precision)?

asked May 11, 2022 at 22:59

6 votes

2 answers

6k views

Why are gas giants colored the way they are?

asked Feb 5, 2015 at 3:16

5 votes

1 answer

77 views

How many horizontal branch stars are within 2 kpc of the sun?

asked Jan 31, 2019 at 0:20

5 votes

1 answer

487 views

Do galaxies have a preferred orientation?

asked Jan 9, 2014 at 0:27

5 votes

1 answer

2k views

What is the degree of ionization is the solar photosphere?

asked Nov 5, 2014 at 18:46

5 votes

3 answers

919 views

At what density does helium burning start in a star?

asked Nov 6, 2014 at 14:40

5 votes

1 answer

2k views

Look up current positions and velocities of solar system objects

asked Dec 18, 2014 at 21:42

5 votes

0 answers

60 views

Estimates for how many Trans-Neptunian Objects there are [duplicate]

asked Feb 9, 2015 at 16:57

5 votes

1 answer

122 views

Determination of orbital elements for Trans-Neptunian Objects, how?

asked Feb 9, 2015 at 18:52

5 votes

1 answer

377 views

Total solar eclipse, supermoon, and spring equinox all happening at the same time: anything special about this?

asked Mar 21, 2015 at 0:29

5 votes

4 answers

2k views

Claim that 30-m class telescopes will have resolution far superior to Hubble: true?

asked May 10, 2015 at 17:34

4 votes

1 answer

2k views

What is the largest hydrogen-burning star?

asked Aug 20, 2015 at 1:27

4 votes

2 answers

871 views

Is dust extinction/reddening caused by Rayleigh scattering or some other physics phenomenon (or both)?

asked May 7, 2014 at 0:34

4 votes

2 answers

1k views

What is the difference between a dwarf spheroidal galaxy and a globular cluster?

asked Jul 9, 2014 at 19:11

3 votes

1 answer

1k views

How are stellar elemental abundances quoted?

asked Oct 22, 2014 at 14:46

3 votes

1 answer

468 views

What is a Seyfert galaxy?

asked Aug 28, 2015 at 20:53

3 votes

1 answer

173 views

What is period doubling in a variable star?

asked May 18, 2018 at 17:06

3 votes

1 answer

531 views

Why do pre-main sequence stars show lithium in absorption?

asked Feb 9, 2016 at 22:43

3 votes

1 answer

586 views

Retrograde motion and Kuiper Belt Objects

asked Jan 28, 2015 at 15:16

3 votes

1 answer

155 views

What does "forward facing" mean for space telescopes?

asked Sep 14, 2016 at 15:53

3 votes

0 answers

106 views

Any pictures showing difference in moon between southern and northern observers?

asked Jan 11, 2019 at 21:38

3 votes

1 answer

1k views

What is meant by topocentric right ascension and declination?

asked Apr 14, 2020 at 16:20

Stack Exchange Network

42 Questions

What does forward modeling mean?

Recommendation for introductory cosmology text

Red Moon a Characteristic of all Total Lunar Eclipses?

What can be seen with a 4.5" telescope

Difference between quasar and Active Galactic Nuclei?

How did the Mars satellites "take cover" from the recent comet flyby?

What is the brightest star (relative magnitude) in M31?

Why does higher surface gravity broaden spectral lines?

Should I drop source shot noise from the SNR calculation when all I care about is detection (not photometric precision)?

Why are gas giants colored the way they are?

How many horizontal branch stars are within 2 kpc of the sun?

Do galaxies have a preferred orientation?

What is the degree of ionization is the solar photosphere?

At what density does helium burning start in a star?

Look up current positions and velocities of solar system objects

Estimates for how many Trans-Neptunian Objects there are [duplicate]

Determination of orbital elements for Trans-Neptunian Objects, how?

Total solar eclipse, supermoon, and spring equinox all happening at the same time: anything special about this?

Claim that 30-m class telescopes will have resolution far superior to Hubble: true?

What is the largest hydrogen-burning star?

Is dust extinction/reddening caused by Rayleigh scattering or some other physics phenomenon (or both)?

What is the difference between a dwarf spheroidal galaxy and a globular cluster?

How are stellar elemental abundances quoted?

What is a Seyfert galaxy?

What is period doubling in a variable star?

Why do pre-main sequence stars show lithium in absorption?

Retrograde motion and Kuiper Belt Objects

What does "forward facing" mean for space telescopes?

Any pictures showing difference in moon between southern and northern observers?

What is meant by topocentric right ascension and declination?