NGC4644 (Galaxy)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , NGC4644 is visible in the morning sky, becoming accessible around 21:06, when it reaches an altitude of 21° above your north-eastern horizon. It will then reach its highest point in the sky at 03:48, 68° above your northern horizon. It will be lost to dawn twilight around 05:45, 60° above your north-western horizon.
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Name
NGC4644
|
Object type
Galaxy
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Position
| Right ascension: | 12h42m [4] |
| Declination: | +55°08' [4] |
| Constellation: | Ursa Major |
| Magnitude: | 13.84 (V) [2] 14.60 (B) [2] 11.65 (J) [2] 10.98 (H) [2] 10.61 (K) [2] |
| Angular dimensions: | 1.5 arcmin x 0.6 arcmin |
| Position angle: | Major axis 51.0°E of N |
| Hubble type: | Sb |
| Distance: | 87.4 Mpc 284.9 Mlyr [1] |
| B-V Color (mag): | 0.76 |
Derived quantities
| Absolute mag (V): | -20.87 |
Sources