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Messier M103

Object Information Messier object: M103 NGC (New General Catalog) number: NGC 581 Discription: Open Cluster Located in constellation: Cassiopeia Right ascension in hours minutes: 1:33.2 Declination in degrees minutes: 60:42 Visual magnitude: 7.4 Size: 6.0 arc minutes Image size: 55.23 arc minutes high by 40.98 arc minutes wide Image orientation: North is top, East is left Detailed discription of M103 in SEDS Messier database Other Messier galleries, images or catalogs

Observing Log
Date September 14, 1998
Time at end of CCD image 01:01 PDT
Time at end of last CCD image 21:22 PDT
Observing Location: At home on the drive way
Observation of object:
 
Sky Conditions
Sky transparency: 5.0 (Magnitude of the faintest star visible with the unaided eye in Ursa Minor)
Moon rise at 00:45 PDT on September 14, 1998
Astronomical twilight ends in the evening at 21:06 PDT on September 13, 1998
Astronomical twilight starts in morning at 5:03 PDT on September 14, 1998
 
Observing Equipment
80 mm aperture refractor telescope and CCD Cookbook Camera
CCD image time: one 240 seconds image
CCD dark calibration frames: 20 - 240 seconds dark frames
Notes: Used too cold of cooling water for the CB245 camera and the CB245 camera dewed up with water all over it. There may be some water on the camera window on some of the images taken night of September 13-14, 1998.

© 1998-2003 David Haworth