Messier M15


Object Information
Messier object: M15
NGC (New General Catalog) number: NGC 7078
Discription: Globular Cluster
Located in constellation: Pegasus
Right ascension in hours minutes: 21:30.0
Declination in degrees minutes: 12:10
Visual magnitude: 6.2
Size: 12.3 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 M15 in SEDS Messier database
Other Messier galleries, images or catalogs

Observing Log
Date of observation: September 11, 1998
Time at end of first CCD image 23:00 PDT
Time at end of last CCD image 23:18 PDT
Observing Location: At home on the drive way
Observation of object: M15 is a round globular cluster with some stars resolved to half way to center and it has a round core.
Sky Conditions
Sky transparency: 5.6 - 5.0 (Magnitude of the faintest star visible with the unaided eye in Ursa Minor)
Moon rise at 23:06 PDT on September 11, 1998
Astronomical twilight ends in the evening at 21:10 PDT on September 11, 1998
Astronomical twilight starts in morning at 5:00 PDT on September 11, 1998
Observing Equipment
80 mm aperture refractor telescope and CCD Cookbook Camera
CCD image time: 5 - 240 seconds images added together
CCD dark calibration frames: 18 - 240 seconds dark frames

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