Messier M109


Messier Object Information

Messier object: M109
NGC (New General Catalog) number: NGC 3992
Discription: Spiral Galaxy
Located in constellation: Ursa Major
Right ascension in hours minutes: 11:57.6
Declination in degrees minutes: 53:23

Visual magnitude: 9.8
Size: 7 x 4 arc minutes
Image size: 31 arc minutes high by 41 arc minutes wide
Image orientation: North is top, West is right, East is left and South is bottom
Detailed discription of M109 in SEDS Messier database
Other Messier galleries, images or catalogs

Observing Log
Date of observation: March 22, 2001
Time at end of first CCD image 22:14 PST
Time at end of last CCD image 22:35 PST
Observing Location: At home on the drive way
Observation of object: M109 is a spiral galaxy with a bar.
Sky Conditions
Astronomical twilight ended in the evening at 20:07 PST on March 22, 2001
Astronomical twilight started in morning at 4:25 PST on March 23, 2001
Observing Equipment

Fastar Celestron C-8 Schmidt-Cassegrain telescope with Fastar lens accessory and SBIG ST-237 CCD Camera
CCD image time: 32 - 30 seconds images stacked together
No guiding or PEC.
Imaging processing

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