Messier M33

Observing Log
Messier M33 information
Date of observation: August 25, 2001
Time at end of first CCD image 3:12 PDT
Time at end of last CCD image 4:34 PDT
Observing location: home observatory

Sky Conditions
Seeing: FWHM 2.52708 based on Star GSC 2293:519, Magnitude: 11.7, RA: 01h 33m 54.1s Dec: +30°48'41" (Epoch 2000) Star is at column 356.506, row 87.8072, FWHM 2.52708, peak value 2698.07, background 139.037.
For Sun set, astronomical twilight end, Moon rise or set, astronomical twilight begin and Sun rise refer to dark sky.

Observation of Object
M33 is a large bright galaxy.
Image size is 31 arc minutes high by 41 arc minutes wide.
Image orientation: North is top, West is right, East is left and South is bottom.

Observing Equipment

Celestron C-8 Schmidt-Cassegrain telescope with Fastar lens accessory and SBIG ST-237 CCD Camera
CCD image time: 120 - 30 seconds images stacked together
No guiding or PEC used.

M33 image taken with Orion ShortTube 80 mm refractor telescope and Cookbook CB245 CCD Camera.

Use Test patterns to calibrate monitor brightness, contrast, height and width

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