NGC639 (Galaxy)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From Cambridge , NGC639 is not readily observable since it lies so far south that it will never rise more than 17° above the horizon.
|
Name
NGC639
|
Object type
Galaxy
|
Position
| Right ascension: | 01h38m [2] |
| Declination: | −29°55' [2] |
| Constellation: | Sculptor |
| Magnitude: | 14.13 (V) [2] 14.70 (B) [2] 12.32 (J) [2] 11.61 (H) [2] 11.32 (K) [2] |
| Hubble type: | Sa |
| Distance: | 131.0 Mpc 427.1 Mlyr [1] |
| B-V Color (mag): | 0.57 |
Derived quantities
| Absolute mag (V): | -21.46 |