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Messier M94

Object Information Messier object: M94 NGC (New General Catalog) number: NGC 4736 Discription: Spiral Galaxy Located in constellation: Canes Venatici Right ascension in hours minutes: 12:50.9 Declination in degrees minutes: +41:07 Visual magnitude: 8.2 Size: 7 x 3 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 M94 in SEDS Messier database Other Messier galleries, images or catalogs

Observing Log
Date September 13, 1998
Time at end of first CCD image 20:47 PDT
Time at end of last CCD image 20:51 PDT
Observing Location: At home on the drive way
Observation of object:
 
Sky Conditions
Four images were taken, one had a airplane in it and another had a satellite in it.
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: 2 - 240 seconds images added together
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