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Messier 3 is a globular cluster in the constellation canes venatici. The cluster’s distance is roughly 34000lyrs. Its diameter
measures about 125 lyrs and its populated by appx. 500000 stars.
The object was discovered by Charles Messier in 1764.
Datum/Date:
18.05.2020 / May 18th, 2020
Optik / Scope:
7,5” Maksutov Newtonian Astrograph f/5.3 with 2” 1:10 motorized Crayford focusser
Sensor/CCD:
ASI 183 MC Pro @ -15°C
Autoguiding:
ALccd5 L II@ 60mm Guidscope
Belichtung/Exposure:
10 x 300sec , Gain=120, total integration time= 0h 50min 00sec
Software:
Deep Sky Stacker, PixInsight, Photoshop CC
The Universe at a glance...
Juniper Hill Observatory
Köfering, Bavaria
12° 12’ E
48°56’ N
344m N.N.
NGC 5272 (Messier 003)
