MESSIER INDEX - NGC INDEX - NAME INDEX
Date December 20, 1998
Time at end of first CCD image 22:30 PST
Time at end of last CCD image 22:43 PST
Observing Location: At home on the drive way
Observation of object: M37 is an irregularly round open cluster with lots of bright stars. M37 is located in the Milky Way which provides a rich backgound of stars.
Sky transparency: 5.5 (Magnitude of the faintest star visible with the unaided eye in Ursa Minor)
Moon sets at 18:31 PST
Astronomical twilight ends in the evening at 18:16 PST
Astronomical twilight starts in morning at 6:00 PST December 21, 1998
80 mm aperture refractor telescope and CCD Cookbook Camera
CCD image time: 4 - 240 seconds images added together
CCD dark calibration frames: 8 - 240 seconds dark frames
JASC Inc. Paint Shop Pro version 4.12 used for editing star blooming in the image.
Use Test patterns to calibrate monitor brightness, contrast, height and width
© 1998-2003 David Haworth