NGC4646 (Galaxy)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , NGC4646 is visible in the morning sky, becoming accessible around 21:08, 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, 69° 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
NGC4646
|
Object type
Galaxy
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Position
| Right ascension: | 12h42m [4] |
| Declination: | +54°51' [4] |
| Constellation: | Ursa Major |
| Magnitude: | 13.31 (V) [2] 14.33 (B) [2] 10.82 (J) [2] 10.09 (H) [2] 9.81 (K) [2] |
| Angular dimensions: | 0.6 arcmin x 0.3 arcmin |
| Position angle: | Major axis 17.0°E of N |
| Hubble type: | E |
| Distance: | 77.1 Mpc 251.3 Mlyr [1] |
| B-V Color (mag): | 1.02 |
Derived quantities
| Absolute mag (V): | -21.13 |
Sources