Astronomy
user avatar
user avatar
user avatar
Peter Erwin
  • Member for 7 years
  • Last seen this week
Profile Activity
Stats
14,738
reputation
206k
reached
217
answers
0
questions
Communities
View all
About

Astronomer at the Max-Planck-Institute for Extraterrestrial Physics, specializing in supermassive black holes and galaxy morphology, dynamics, and evolution.

Open-source code for fitting images of galaxies: www.mpe.mpg.de/~erwin/code/imfit

Badges
View all badges
1
gold badge
31
silver badges
49
bronze badges
Top tags
View all tags
223
Score
46
Posts
21
Posts %
161
Score
38
Posts
18
Posts %
90
Score
16
Posts
7
Posts %
84
Score
13
Posts
6
Posts %
65
Score
12
Posts
6
Posts %
56
Score
13
Posts
6
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
66
Where do we have it from that the Moon is migrating away from Earth?
Jul 14, 2020
answer
59
Is oxygen really the most abundant element on the surface of the Moon?
Feb 11, 2021
answer
52
Is Earth's Surface "In orbit"?
Nov 18, 2019
answer
44
Are there observable changes in a star about to become supernova, minutes or hours before the explosion?
Sep 21, 2016
answer
43
Are there any old/ancient star maps that we can compare to today’s and see drastic differences?
Aug 11, 2021
answer
25
Is it possible that the Sun and all the nearby stars formed from the same nebula?
Feb 11, 2021
answer
18
Which are stars and which are noise in this comet photo?
Oct 15, 2019
answer
16
Why isn't most hydrogen in the universe molecular (diatomic), instead of atomic (monoatomic)?
Apr 8, 2021
answer
15
Why is Starlink polluting the night sky a big concern if we have space telescopes?
Apr 21, 2021
answer
14
How can the (in my eyes quite ridiculous) conjecture of Sheldrake be disproven?
Jun 4, 2021
Top network posts
View all network posts
83
Why don't solar panels contribute to global warming?
46
Were there occasions when a sovereign country voluntarily joined another country?
26
Can a planet's axial tilt turn to always be facing its star?
16
Why did native Americans and Europeans mix in South America but not in North America?
14
What is the longest retreat?

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.