From: "centurion40tim" <urgent40@cybertrails.com>
Date: March 19, 2006 11:38:48 AM MST
To: Astro_IIDC@yahoogroups.com
Subject: 1st light webcam
Adventures in astrophotography on a tight budget continue. Ist light for Unibrain
webcam with Astro IIDC program. I can't fit all this info on this particular shot of
Jupiter:
Seeing: good but thin high clouds were covering planet
17mm plossl with 2x barlow
About 100 frames. Using Keith's Image Stacker because I'm not even sure if I can use
Astro IIDC to stack and process. Can I?
Used 66ms exposure. Other settings were guesses because I don't know what I'm
doing yet.
Using Astro IIDC with a webcam for a live shot of the planet is a very very cool
experience. Obviously I have a lot to learn. Problems include getting a closer, bigger
image of the planet. When I zoom, the quality takes a dive. Will try using my 10mm
plossl and increasing the exposure time, which has a nice brightening effect on the
live image.
I had been using a Minolta Z1 digital camera attached directly to the scope. That
setup resulted in some very nice shots of Jupiter, Saturn and the moon - better than I
am currenlty getting with my webcam. However, it simply will not image anything dim,
not even m42. Nada, nothing. I am hoping that my new setup will result in the ability
to shoot some nebulae, globulars and maybe even galaxies. One limitation is the
tracking on my C9.25 ASGT. The tracking is good but not great so I can't take
exposures of more than say 1 minute.
It's my vacation right now so of course clouds have moved in. Have a good one.
Tim H