From: "Milton Aupperle" <milton@outcastsoft.com>
Date: June 3, 2006 3:34:52 PM MDT
To: Astro_IIDC@yahoogroups.com
Subject: Messier 5 Globular Cluster Revisited
Hi Folks;
I just posted a new version of M5 I shot last week.
http://groups.yahoo.com/group/Astro_IIDC/files/DSO/M5_20060531_MJA.jpg
It was fairly a difficult target as thin haze with light pollution
raised the visual limiting magnitude to about 2.0, so a generous use
of levels to remove the high background was neccessary. And if you
over expose or over process it, you lose the contrasting reddish
yellow and blue colors of the core stars.
It was auto guided at 7.5 fps off a Mag 5 star using the Shoe String
Astronomy's GPUSB controller with the HEQ5 mount, a cheap Appogee 80
mm aperture F10 refractor and an old Unibrain Fire-I color camera.
Guding turned out good with nice round stars. I used 2 copies of Astro
IIDC, one guiding and one imaging at the same time.
TTYL..
Milton Aupperle