Ringnebel M57 mit H-alpha bei 400mm f/9 mit STL-11000M
Object: Ring Nebula
Date: 18.08.09
Location: Oberes Schlierental 1450m ü. M.
SQM: 21.36m/s2 at 05:15UTC
Telescope: Astrooptik Keller Cassegrain 400mm f/9
Mount: ALT-7
Autoguiding: Second chip in SBIG STL-11000M
Camera: SBIG STL-11000M
Filter: H-alpha
Dark Frame: -25°C
Exposure: 6x600s + 5x300s Luminance, 6x1800s H-alpha,
every 3x600s RGB, total 265minutes
|
E-Mail an: info@astrooptik.ch
Copyright © by Astro Optik GmbH
Letzte Änderungen: 4. August 2009, Webmaster