V644-Her (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 Columbus , V644-Her is visible in the morning sky, becoming accessible around 00:49, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 05:39, 63° above your southern horizon. It will be lost to dawn twilight around 06:05, 63° above your southern horizon.
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|
Name
V644-Her
|
Object type
Star
|
Other names
Position
| Right ascension: | 16h55m16s [4] |
| Declination: | +13°37'11" [4] |
| Constellation: | Hercules |
| Magnitude: Variable | 6.35 (V) [2] 6.75 (BT) [2] 6.38 (VT) [2] 6.28 (G) [4] 6.44 (BP) [4] 5.96 (RP) [4] |
| Distance: | 74.8 parsec 243.9 lightyrs [4] |
| B-V Color (mag): | 0.31 |
| Proper motion (speed): | 52.7 mas/yr[4] |
| Proper motion (pos ang): | 133.4° |
Derived quantities
| Absolute mag (V): | 1.98 |
Visibility from Columbus
All times shown in Columbus local time.