NGC1640 (Galaxy)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , NGC1640 is visible in the dawn sky, rising at 00:42 (PDT) and reaching an altitude of 35° above the southern horizon before fading from view as dawn breaks at around 05:34.
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Name
NGC1640
|
Object type
Galaxy
|
Position
| Right ascension: | 04h42m [2] |
| Declination: | −20°26' [2] |
| Constellation: | Eridanus |
| Magnitude: | 11.69 (V) [2] 12.43 (B) [2] 9.81 (J) [2] 9.14 (H) [2] 8.90 (K) [2] |
| Hubble type: | Sb |
| Distance: | 13.5 Mpc 44.0 Mlyr [1] |
| B-V Color (mag): | 0.74 |
Derived quantities
| Absolute mag (V): | -18.96 |