Search found 7 matches

by FrankAa
Sun Feb 21, 2010 2:04 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: WISE Infrared Andromeda (2010 Feb 19)
Replies: 31
Views: 8624

Re: APOD: WISE Infrared Andromeda (2010 Feb 19)

Thanks RJN... The questions of Michel are nice too :)
by FrankAa
Fri Feb 19, 2010 5:19 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: WISE Infrared Andromeda (2010 Feb 19)
Replies: 31
Views: 8624

Re: APOD: WISE Infrared Andromeda (2010 Feb 19)

Well... if we forget about the dots for a moment... What really intrigues me about this picture is the weird form the galaxy has in infrared. I see a ring of fire (which is really a huge spiral arm). Outside the ring, I see some matter that seems to be pulled away from the ring (left) and a partial ...
by FrankAa
Fri Feb 19, 2010 2:51 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: WISE Infrared Andromeda (2010 Feb 19)
Replies: 31
Views: 8624

Re: APOD: WISE Infrared Andromeda (2010 Feb 19)

At least one of the red dots corresponds to a fluffy white spot in visible light, so that would be a background galaxy, I guess.
by FrankAa
Fri Feb 19, 2010 2:44 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: WISE Infrared Andromeda (2010 Feb 19)
Replies: 31
Views: 8624

Re: APOD: WISE Infrared Andromeda (2010 Feb 19)

I've compared the images. Most red dots appear as really faint gray dots in the visible light image.

If they were Bok-globules, as Art says, they should be within the milkyway, which seems a bit strange to me because they are so separated from everything. But maybe they are, I don't know.
by FrankAa
Fri Feb 19, 2010 12:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: WISE Infrared Andromeda (2010 Feb 19)
Replies: 31
Views: 8624

Re: APOD: WISE Infrared Andromeda (2010 Feb 19)

I don't think they are astroids or dust... The red dots are all over the picture, so they are not associated with the galaxy. Maybe they are background galaxies or foreground stars.
by FrankAa
Fri Feb 19, 2010 9:31 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: WISE Infrared Andromeda (2010 Feb 19)
Replies: 31
Views: 8624

Re: APOD: WISE Infrared Andromeda (2010 Feb 19)

Yes, I was wondering too... What are all the red dots? The picture is really sprinkled with them.