Search found 4 matches

by bandi
Tue Sep 13, 2005 9:08 am
Forum: The Observation Deck: Latest Sky Photography
Topic: NGC 4725 colour invert
Replies: 1
Views: 3381

by bandi
Tue Sep 13, 2005 8:52 am
Forum: The Observation Deck: Latest Sky Photography
Topic: NGC 4725 colour invert
Replies: 1
Views: 3381

NGC 4725 colour invert

One of the bright sparks from the NGC 4725 forum has pointed out that the photoshop invert of the Spitzer image contains some extra info in the black. A quick check of the Spitzer site shows it might not be the only one.

http://homepages.co.nz/~bandicoot
by bandi
Tue Sep 13, 2005 8:48 am
Forum: The Observation Deck: Latest Sky Photography
Topic: How to display your image
Replies: 1
Views: 3737

NGC 4725 photoshop invert

One of the bright sparks from the NGC 4725 forum has pointed out that the photoshop invert of the Spitzer image contains some extra info in the black. A quick check of the Spitzer site shows it might not be the only one.

http://homepages.co.nz/~bandicoot
by bandi
Tue Sep 13, 2005 8:32 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: NGC4725 (1SEP05)
Replies: 8
Views: 4651

I too have photoshop and that invert is a very interesting image. It does confirm that there is a large line of stars in the area you might expect an arm to be. Because the stars are all but invisible in the infrared shot, perhaps it can be assumed that the stars are so old that they are not generat...