The Coma Pinwheel Galaxy (M99)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
Finder chart
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From Cambridge , the Coma Pinwheel Galaxy is visible in the morning sky, becoming accessible around 23:10, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 04:03, 62° above your southern horizon. It will be lost to dawn twilight around 05:55, 53° above your south-western horizon.
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Name
The Coma Pinwheel Galaxy (M99)
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Object type
Galaxy
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Other names
Position
| Right ascension: | 12h18m [4] |
| Declination: | +14°25' [4] |
| Constellation: | Coma Berenices |
| Magnitude: | 9.84 (V) [2] 10.40 (B) [2] 7.89 (J) [2] 7.25 (H) [2] 6.93 (K) [2] |
| Hubble type: | Sc |
| Distance: | 18.4 Mpc 60.0 Mlyr [1] |
| B-V Color (mag): | 0.56 |
Derived quantities
| Absolute mag (V): | -21.48 |
Visibility from Cambridge
All times shown in Cambridge local time.