τ-Her (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , τ-Her is visible in both the dusk and dawn skies. In the evening, it will become visible at around 17:27 (EST), 33° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 6 hours and 51 minutes after the Sun at 23:07 (EST). In the morning, it will rise at 00:51 – 5 hours and 49 minutes before the Sun – and reach an altitude of 24° above the north-eastern horizon before fading from view as dawn breaks at around 05:29.
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Name
τ-Her
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Object type
Star
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Other names
Position
| Right ascension: | 16h19m44s [4] |
| Declination: | +46°18'48" [4] |
| Constellation: | Hercules |
| Magnitude: Variable | 3.87 (V) [2] 3.70 (BT) [2] 3.85 (VT) [2] 3.89 (G) [4] 3.80 (BP) [4] 3.97 (RP) [4] |
| Distance: | 98.4 parsec 320.8 lightyrs [4] |
| B-V Color (mag): | -0.13 |
| Proper motion (speed): | 40.7 mas/yr[4] |
| Proper motion (pos ang): | 341.1° |
Derived quantities
| Absolute mag (V): | -1.10 |
Sources