Scope Focal Length FOV Camera / Film
Takahashi Epsilon 130 435mm 4.8°x3.2° Nikon F2/Kodak E200
Date Start Exposure Location
November 10 2001 19:30 30 minutes Johnson Valley, CA
Notes
During several of these exposures, clouds moved through the field.
All images suffered from trailing in RA. After film processing I found the screws holding the focuser to the guide scope were loose.
I fixed that, I'm also going to support the ST-4 cable differently so it doesn't pull down on the guide scope.
Looks like I can expose longer than 30 minutes on E200 from this site, maybe 45 minutes. E200 pushed +1.

IC1318M45M42, M43, NGC1977
NGC2024, B33, M78NGC2237
main page objects messier
All images on these pages are Copyright © 1999 - 2017 by Mike Halderman