V639-Cas (Star)
Color-magnitude diagram
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From South El Monte , V639-Cas is visible in the dawn sky, becoming accessible around 03:00 (PDT), when it reaches an altitude of 21° above your north-eastern horizon. It will then reach an altitude of 33° before fading from view as dawn breaks at 04:57.
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|
Name
V639-Cas
|
Object type
Star
|
Position
| Right ascension: | 00h03m25s [4] |
| Declination: | +63°38'25" [4] |
| Constellation: | Cassiopeia |
| Magnitude: Variable | 6.27 (V) [2] 6.58 (BT) [2] 6.30 (VT) [2] 6.16 (G) [4] 6.32 (BP) [4] 5.80 (RP) [4] |
| Distance: | 763.4 parsec 2488.6 lightyrs [3] |
| B-V Color (mag): | 0.24 |
| Proper motion (speed): | 4.5 mas/yr[3] |
| Proper motion (pos ang): | 263.3° |
Derived quantities
| Absolute mag (V): | -3.14 |
Visibility from South El Monte
All times shown in South El Monte local time.