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Astronomy
Peter Erwin's user avatar
Peter Erwin's user avatar
Peter Erwin's user avatar
Peter Erwin
  • Member for 9 years, 3 months
  • Last seen this week
  • Munich, Germany
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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

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66
Where do we have it from that the Moon is migrating away from Earth?
Jul 14, 2020
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60
Is oxygen really the most abundant element on the surface of the Moon?
Feb 11, 2021
answer
53
Is Earth's Surface "In orbit"?
Nov 18, 2019
answer
45
Are there observable changes in a star about to become supernova, minutes or hours before the explosion?
Sep 21, 2016
answer
44
Does space dust fall on the roof of my house and if so can I detect it with a cheap home microscope?
Aug 5
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
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18
Why isn't most hydrogen in the universe molecular (diatomic), instead of atomic (monoatomic)?
Apr 8, 2021
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18
What telescope is Polish astronomer Kazimierz Kordylewski holding in this April 1964 photo at the Jagiellonian University Observatory in Krakow?
Jun 22, 2023
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18
Which are stars and which are noise in this comet photo?
Oct 15, 2019
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Why don't solar panels contribute to global warming?
47
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?