Search found 6 matches
- Wed Apr 08, 2020 2:19 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Country Sky versus City Sky (2020 Apr 08)
- Replies: 14
- Views: 3517
Re: APOD: Country Sky versus City Sky (2020 Apr 08)
Which is more problematic for astronomers; artificial ground lighting or orbiting space vehicles and junk?
- Fri Sep 07, 2018 12:48 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Saturn's North Polar Hexagon (2018 Sep 07)
- Replies: 16
- Views: 3161
Re: APOD: Saturn's North Polar Hexagon (2018 Sep 07)
Appearing with the massive hexagon and center vortex are a few other features or artifacts in the false-color map-projected video image that are not mentioned/explained. 1) A small dark speck at the very edge of the image ~4 o'clock, 2) A much larger light shaded disk at ~5:30, 3) A light-dark bound...
- Mon Sep 25, 2017 3:56 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Conjunction of Comets (2017 Sep 23)
- Replies: 6
- Views: 4087
Re: APOD: A Conjunction of Comets (2017 Sep 23)
Today's explanation refers to C/2017 O1 ASASSN as a binary comet. Does this suggest that it has two separate nuclei, only one of which I can resolve in the image posted?
- Wed Nov 06, 2013 1:11 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Creature Aurora Over Norway (2013 Nov 06)
- Replies: 69
- Views: 9676
Re: APOD: Creature Aurora Over Norway (2013 Nov 06)
Setting aside discussion of the apparition evoked by today’s amazing aurora image for a moment, I’m intrigued by the “small vertical tail” appearing at the left inner edge of the crescent, just left of image center. May I assume the image captures a dense sheet of incoming electrons more or less edg...
- Fri Apr 22, 2011 1:25 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Lunar Farside (2011 Apr 09)
- Replies: 45
- Views: 3561
Re: APOD: Lunar Farside (2011 Apr 09)
Thank you Art Neuendorffer and JohnD for your replies and helpful references.
- Mon Apr 18, 2011 2:30 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Lunar Farside (2011 Apr 09)
- Replies: 45
- Views: 3561
Re: APOD: Lunar Farside (2011 Apr 09)
If I'm not mistaken, various seismometers have been placed on the Moon over time. Assuming such devices are operable and sensitive enough, is it possible to analyze such seismic readings in order to substantiate the theory that the far side crust is thicker? Would the LCROSS impact at the South Pole...