τ-CrB (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 , τ-CrB is visible in both the dusk and dawn skies. In the evening, it will become visible at around 17:27 (EST), 26° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 4 hours and 27 minutes after the Sun at 20:43 (EST). In the morning, it will rise at 02:53 – 3 hours and 47 minutes before the Sun – and reach an altitude of 20° above the north-eastern horizon before fading from view as dawn breaks at around 05:29.
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|
Name
τ-CrB
|
Object type
Star
|
Other names
Position
| Right ascension: | 16h08m58s [4] |
| Declination: | +36°29'32" [4] |
| Constellation: | Corona Borealis |
| Magnitude: Variable | 4.74 (V) [2] 6.03 (BT) [2] 4.84 (VT) [2] 4.43 (G) [4] 4.96 (BP) [4] 3.78 (RP) [4] |
| Distance: | 34.5 parsec 112.3 lightyrs [4] |
| B-V Color (mag): | 1.01 |
| Proper motion (speed): | 337.6 mas/yr[4] |
| Proper motion (pos ang): | 349.9° |
Derived quantities
| Absolute mag (V): | 2.05 |
Visibility from Cambridge
All times shown in Cambridge local time.