The star τ-Boo
Color-magnitude diagram
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Seattle , τ-Boo is visible in the dawn sky, rising at 01:36 (PST) and reaching an altitude of 45° above the south-eastern horizon before fading from view as dawn breaks around 06:21.
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|
Name
τ-Boo
|
Object Type
Star
|
Position
| Constellation: | Bootes |
| Magnitude: Variable | 4.49 (V) [1] 5.06 (BT) [1] 4.54 (VT) [1] |
| B-V Color (mag): | 0.45 |
| Right ascension: | 13h47m15s [1] |
| Declination: | +17°27'24" [1] |
| Distance: | 15.6 parsec 50.9 lightyrs [2] |
| Proper motion (speed): | 482.5 mas/yr [2] |
| Proper motion (pos ang): | 276.4° |
Derived Quantities
| Absolute mag (V): | 3.52 |