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Globular cluster M3
Messier 3 (M3; also NGC 5272) is a globular cluster of stars in the northern constellation of Canes Venatici.
It was discovered on May 3, 1764, and was the first Messier object to be discovered by Charles Messier himself. Messier originally mistook the object for a nebula without stars. This mistake was corrected after the stars were resolved by William Herschel around 1784
Equipment: EQ5Pro, GSO Newton astrograph 150/600, GSO 2" coma corrector, QHY 8L-C, SVbony UV/IR cut, guiding QHY5L-II-C, SVbony guidescope 240mm.
Software: NINA, DeepSkyStacker, Siril, Adobe photoshop
100x120 sec. Lights gain5, offset115 at -10°C, master bias, 60 flats, master darks.
16 and 17 March 2023
Belá nad Cirochou, northeastern Slovakia, bortle 4
Globular cluster M3
Messier 3 (M3; also NGC 5272) is a globular cluster of stars in the northern constellation of Canes Venatici.
It was discovered on May 3, 1764, and was the first Messier object to be discovered by Charles Messier himself. Messier originally mistook the object for a nebula without stars. This mistake was corrected after the stars were resolved by William Herschel around 1784
Equipment: EQ5Pro, GSO Newton astrograph 150/600, GSO 2" coma corrector, QHY 8L-C, SVbony UV/IR cut, guiding QHY5L-II-C, SVbony guidescope 240mm.
Software: NINA, DeepSkyStacker, Siril, Adobe photoshop
100x120 sec. Lights gain5, offset115 at -10°C, master bias, 60 flats, master darks.
16 and 17 March 2023
Belá nad Cirochou, northeastern Slovakia, bortle 4