MESSIER INDEX - NGC INDEX - NAME INDEX
Date September 13, 1998
Time at end of first CCD image 22:59 PDT
Time at end of last CCD image 23:11 PDT
Observing Location: At home on the drive way
Observation of object: M26 is an open cluster with few of stars. It has a few bright together. M26 is located in the Scutum star cloud and it is diffcult to clearly seperate M26 from the star cloud in the above image.
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
80 mm aperture refractor telescope and CCD Cookbook Camera
CCD image time: 4 - 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.
Use Test patterns to calibrate monitor brightness, contrast, height and width
© 1998-2003 David Haworth