Search found 2 matches

by JoelN
Sun Jul 18, 2010 5:41 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Antennae Galaxies in Collision (2010 Jul 18)
Replies: 31
Views: 3672

Re: APOD: The Antennae Galaxies in Collision (2010 Jul 18)

It would have been nice if the author of the blurb accompanying today's APOD had actually NAMED the two galaxies!!! A decent grasp of English grammar would help as well.

Thank you, Ann, above, for providing fascinating and much-needed follow-up information.
by JoelN
Mon Oct 19, 2009 7:02 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Galaxy M33 with Emission Nebulae (APOD, Oct. 17, 2009)
Replies: 2
Views: 1343

Galaxy M33 with Emission Nebulae (APOD, Oct. 17, 2009)

The APOD photo for the above date shows galaxy M33 with red emission nebulae. Just a few days earlier, APOD featured the Pleiades cluster (M45), w blue reflection nebula. Am I missing something here? I thought higher-energy emission nebulae showed up in blue, and lower-energy reflection nebulae in r...