Ringnebel M57 mit OIII bei 400mm f/9 mit STL-11000M

M57 in OIII 


Object:      Ring Nebula

Date:        13.07.10

Location:    Oberes Schlierental 1450m ü. M.

SQM:         21.51m/s2 at 00:30UTC by 16°C

Telescope:   Astrooptik Keller Cassegrain 400mm f/9

Mount:       ALT-7

Autoguiding: Second chip in SBIG STL-11000M
           
Camera:      SBIG STL-11000M

Filter:      OIII

Dark Frame:  -20°C

Exposure:    3x1800s, total 90minutes

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Letzte Änderungen: 29. Juli 2010, Webmaster