View Single Post
  #2  
Old November 19th 06, 02:18 AM posted to alt.binaries.pictures.astro
Rick Johnson
external usenet poster
 
Posts: 18
Default ASTRO: wide-field centered on Scutum star cloud

For some reason that one is very green. Don't think you have any light
pollution there from what you say so don't understand where it came
from. I'm not very good at adjusting color but tried to tone it down
and make the background dark gray rather than green. Not sure what that
does to G2 stars however. Since you have mentioned you are red green
color blind I could see how you miss it -- and V Aquila as well.

A lot of M objects there too.

Rick


George Normandin wrote:
Image with Canon Rebel DSLR and Tamaron 28-200mm lens on an Orion EQ-1
mount. A five minute exposure taken at Indian Lake NY on Aug 13, 2006. West
is at the top and the area starts at the left with northern Sagittarius and
runs right (north) thru Scutum, and Serpens Cauda into southern Aquila.

If anyone is considering getting one of these cameras for similar imaging,
note that the original full resolution images are notabley better than this
compressed version. The 'advantage' of this set-up over a 'normal' astro CCD
camera is no need for PC (while imaging) and both the camera and mount work
on small batteries and you can carry the whole rig in one hand. The other
advantage is cost. Of course a CCD camera and small APO on a high quality
mount will give better results, but at more cost and more difficulty in
taking to a remote wilderness location. For example taking this image
required that I walk a short but steep and rugged trail to get to the
observing area. (When the bears show up in involves *running* on the
trail!!)

George N




Attached Thumbnails
Click image for larger version

Name:	Scutum1A.jpg
Views:	305
Size:	219.0 KB
ID:	135