τ-Boo (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , τ-Boo is visible all night. It will become visible at around 21:13 (EDT), 54° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:11, 65° above your southern horizon. It will be lost to dawn twilight at around 04:06, 24° above your western horizon.
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Name
τ-Boo
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Object type
Star
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Other names
Position
| Right ascension: | 13h47m15s [4] |
| Declination: | +17°27'25" [4] |
| Constellation: | Bootes |
| Magnitude: Variable | 4.49 (V) [2] 5.06 (BT) [2] 4.54 (VT) [2] 4.36 (G) [4] 4.61 (BP) [4] 3.96 (RP) [4] |
| Distance: | 15.6 parsec 50.9 lightyrs [4] |
| B-V Color (mag): | 0.45 |
| Proper motion (speed): | 473.2 mas/yr[4] |
| Proper motion (pos ang): | 277.7° |
Derived quantities
| Absolute mag (V): | 3.52 |
Sources