Spiral Galaxy Messier 99 (M99) in Coma Berenices
Taken by Tom Wildoner on April 1, 2025 @
Weatherly, PA, USA
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2025:04:05 13:59:30
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Details:
Messier 99 or M99 (NGC 4254) in the constellation Coma Berenices is a spiral galaxy approximately 56 million light-years away from Earth. Burnham states, “The spiral pattern is very well defined, although somewhat asymmetric, with an unusually far-extending arm on the west side….”
Observation data (J2000 epoch)
Constellation: Coma Berenices
Right ascension: 12h 18m 49.625s
Declination: +14° 24′ 59.36″
Distance: 45.2 Mly
Group or cluster: Virgo Cluster
Apparent magnitude (V): 9.9
Tech Specs: Meade 12” LX-90 SCT Telescope, Antares Focal Reducer, ZWO ASI2600MC camera running at -10F, 73 x 60 second exposures, Celestron CGX-L pier mounted, ZWO EAF and ASIAir Pro, processed in PixInsight. Image Date: April 1, 2025. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Photographer's website:
https://www.thedarksideobservatory.com
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