The star τ-And
Color-magnitude diagram
Red-band image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Cambridge , τ-And is visible in the dawn sky, rising at 00:37 (EDT) – 4 hours and 38 minutes before the Sun – and reaching an altitude of 22° above the north-eastern horizon before fading from view as dawn breaks at around 03:50.
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|
Name
τ-And
|
Object Type
Star
|
Position
| Constellation: | Andromeda |
| Magnitude: Variable | 4.95 (V)[1] 4.84 (BT)[1] 4.94 (VT)[1] 4.99 (RP)[2] 4.90 (G)[2] 4.91 (BP)[2] |
| B-V Color (mag): | -0.09 |
| Right Ascension: | 01h40m34s [2] |
| Declination: | +40°34'37" [2] |
| Distance: | 203.4 parsec 663.0 lightyrs [2] |
| Proper motion (speed): | 28.5 mas/yr [2] |
| Proper motion (pos ang): | 139.0° |
Derived Quantities
| Absolute Mag (V): | -1.59 |