τ¹-Ser (Star)
From Cambridge , τ¹-Ser is visible in the dawn sky, rising at 03:20 (EST) – 3 hours and 33 minutes before the Sun – and reaching an altitude of 24° above the eastern horizon before fading from view as dawn breaks at around 05:40.
Name
τ¹-Ser
|
Object type
Star
|
Right ascension: | 15h25m47s [4] |
Declination: | +15°25'40" [4] |
Constellation: | Serpens Caput |
Magnitude: Variable | 5.16 (V) [2] 7.31 (BT) [2] 5.34 (VT) [2] 4.41 (G) [4] 5.43 (BP) [4] 3.41 (RP) [4] |
Distance: | 253.7 parsec 827.2 lightyrs [4] |
B-V Color (mag): | 1.68 |
Proper motion (speed): | 15.3 mas/yr[4] |
Proper motion (pos ang): | 239.4° |
Absolute mag (V): | -1.86 |
All times shown in Cambridge local time.