τ¹-Ser (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Fairfield , τ¹-Ser will become visible at around 21:01 (EDT), 49° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 01:34.
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Name
τ¹-Ser
|
Object type
Star
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Other names
Position
| 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° |
Derived quantities
| Absolute mag (V): | -1.86 |
Sources