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M 101

Started by dan kowall, 01/30/2006 01:48AM
Posted 01/30/2006 01:48AM Opening Post
A break in the weather has finally allowed me to image again.
Information, larger images, and galaxy identifications can be found here:
http://www.photonhunter.com/M101.html

ST2000XM on a Tak FSQ
LRGB: 150/90/60/45 minutes

Thanks for looking,

dan kowall

Attached Image:

dan  kowall's attachment for post 29457
Posted 01/30/2006 02:07PM #1
Nicely done Dan! 8)
Thanks for the ID on the other 2 galaxies in the field... wink

Ivan Gastaldo 8)
Coconut Creek, FL

Ivan's Observatory
Lat 26N 16' 48" Long 80W 10' 48"
[COLOR="Red"]Personal Website:[/COLOR] http://www.ivangastaldo.com

CCD Imaging and Processing/Deep Sky - Moderator
I like to complain about everything - Moderator
Posted 01/30/2006 07:02PM #2
Nice one, Dan! Ever consider adding an Extender-Q for more focal length? I'm curious about the artifacts around the bright stars - there's a gap around the star haloes (most noticeable in the bright one to the left of the galaxy) - they almost look like bloom repair artifacts. Is that a processing artifact, or some atmospheric/camera/scope effect?

Eric
Posted 01/30/2006 08:49PM | Edited 01/30/2006 09:02PM #3
Very nice Dan! The distance to M101 as noted on your website link is wrong. It's distance is estimated at 27000 kly (27 million ly) not 2,700 ly. Other estimates show it a little closer at 22 million ly.

Best,

Tom

Starsearch Observatory
Lat 42N 47' 00" Long 112W 10' 47"
Elev 1752m
www.tvdavisastropics.com