Search found 2 matches
- Fri Oct 12, 2012 4:27 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Aurorae over Planet Earth (2012 Oct 11)
- Replies: 24
- Views: 3780
Re: APOD: Aurorae over Planet Earth (2012 Oct 11)
Any idea or guesses what that large expanse of light is on the left middle edge? It is in a lightly populated area. It's larger in area than Chicago though not as bright. It's not Minneapolis/St.P., too far west to be Winnipeg and certainly not Minot N.D. which seems to be nearest. But it's pretty ...
- Mon Nov 10, 2008 2:12 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Black Hole Binary Systems (APOD 09 Nov 2008)
- Replies: 15
- Views: 1977
Re: Black Hole Binary Systems (APOD 09 Nov 2008)
It seems to me that 25,000 light years apart is pretty far for two objects to be considered a binary system, even supermassive black holes. They must be really supermassive.
pj
pj