Astronomy Beta
This account is temporarily suspended to cool down. The suspension period ends on Oct 13 at 19:51.
Profile Activity
Meta user
Network profile
Carl Witthoft
Summary Answers Questions Tags Badges Bookmarks Bounties Reputation All actions

133 Answers

Votes Activity Newest
18
What is behind the Great Red Spot's longevity?
Oct 9 '20 at 13:08
14
Why is Ganymede's aurora only visible in ultraviolet while Earth's is bright green and red?
Jan 14 '20 at 19:14
9
Why are we building larger land-based telescopes instead of launching larger ones into space?
Jun 12 '18 at 15:18
9
How to know that the 21cm Hydrogen line is the actual emission and not any other redshifted line?
Aug 23 '17 at 12:51
6
Has great eyesight been necessary for astronomers?
Dec 30 '19 at 22:38
6
Do comets contain any significant amounts of iridium?
May 9 '17 at 12:41
6
Instead of using flexible mirrors, could software be used for adaptive optics?
Apr 3 '17 at 13:27
5
Why is there no concavity in the orbit of the moon around the Sun?
Mar 3 '20 at 19:26
5
Relatable comparison of VY Canis Majoris to the Sun?
Feb 7 '17 at 14:15
4
Does the magnetic field of earth restore?
Aug 28 '19 at 15:27
4
Is Digital Adaptive Optics Possible?
Jul 3 '19 at 15:29
4
When would we detect a tiny meter size natural satellite in a geostationary orbits?
Mar 12 '19 at 18:30
4
Is there any difference among exoplanets in composition due to host star?
May 14 '18 at 14:57
4
If there was air between the Sun and Earth, how warm would we get?
Jan 27 '17 at 16:07
4
What mechanisms limit the top speed of high altitude winds on Venus?
Jan 11 '17 at 13:27
4
What is precipitable water vapor in millimeter-wave radioastronomy and how is it measured?
Oct 20 '16 at 13:11
3
How do focal length, angular magnification and field of view relate?
Apr 20 '20 at 19:01
3
Can a material other than glass be used for making telescope mirrors?
Jan 20 '20 at 19:05
3
Venus' magnitude during inferior conjunction
Oct 29 '19 at 17:36
3
Difference between first (focal length (fl.) 500 mm, ocular (o.) 10 mm) and second telescope (fl. 1000 mm, o. 20 mm)? (both 50 x)
Aug 1 '19 at 18:18
3
Why are saturn rings so thin?
Mar 5 '19 at 18:47
3
What is the farthest blueshifted object to our galaxy?
Mar 4 '19 at 18:35
3
How to Distinguish between Temperature and Doppler effect using Black-body radiation?
Jan 15 '19 at 20:19
3
Why don't we see purple stars
Nov 21 '18 at 15:04
3
How much of the Universe is subatomic?
Nov 19 '18 at 20:18
3
Source of mirror reflectivity data
Oct 18 '18 at 17:34
3
Is it possible to see an image with radio telescope of something not so far away in detail?
Sep 26 '18 at 17:01
3
Adaptive Optics Shack-Hartmann Sensor and Deformable Mirror
Sep 19 '18 at 18:18
3
Looking at ourselves with a powerful telescope?
Sep 7 '18 at 18:16
3
How will planets behave in the night sky as seen by Mars colonists?
May 4 '18 at 14:36
1
2 3 4 5