Celestial hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  Coma Pinwheel  ·  HD107170  ·  HD107254  ·  M 99  ·  NGC 4254  ·  Virgo Cluster Pinwheel
Spiral Galaxy Messier 99 (M99) in Coma Berenices, Tom Wildoner
Powered byPixInsight

Spiral Galaxy Messier 99 (M99) in Coma Berenices

Spiral Galaxy Messier 99 (M99) in Coma Berenices, Tom Wildoner
Powered byPixInsight

Spiral Galaxy Messier 99 (M99) in Coma Berenices

Equipment

Loading...

Acquisition details

Loading...

Description

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: Orion 8" f/8 Ritchey-Chretien Astrograph Telescope, Sky-Watcher EQ6R-Pro mount that is pier mounted, ASI071MC-Pro, ZWO AAPlus, ZWO EAF, 54 x 60 seconds at -10C, processed using DSS and PixInsight. Image Date: March 26, 2023. Location: The Dark Side Observatory (W95), Weatherly, PA, USA (Bortle Class 4).

Comments

Sky plot

Sky plot

Histogram

Spiral Galaxy Messier 99 (M99) in Coma Berenices, Tom Wildoner

In these public groups

Messier Objects