OP-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 Cambridge , OP-Her is visible in both the dusk and dawn skies. In the evening, it will become visible at around 17:25 (EST), 33° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 6 hours and 28 minutes after the Sun at 22:40 (EST). In the morning, it will rise at 01:16 – 5 hours and 49 minutes before the Sun – and reach an altitude of 27° above the north-eastern horizon before fading from view as dawn breaks at around 05:51.
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|
Name
OP-Her
|
Object type
Star
|
Other names
Position
| Right ascension: | 17h56m48s [4] |
| Declination: | +45°21'02" [4] |
| Constellation: | Hercules |
| Magnitude: Variable | 6.35 (V) [2] 8.21 (BT) [2] 6.51 (VT) [2] 4.60 (G) [4] 6.55 (BP) [4] 3.27 (RP) [4] |
| Distance: | 289.1 parsec 942.6 lightyrs [4] |
| B-V Color (mag): | 1.45 |
| Proper motion (speed): | 35.6 mas/yr[4] |
| Proper motion (pos ang): | 154.0° |
Derived quantities
| Absolute mag (V): | -0.95 |
Visibility from Cambridge
All times shown in Cambridge local time.