τ¹-Ser (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 , τ¹-Ser is visible all night. It will become visible at around 21:47 (EDT), 59° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:52, 63° above your southern horizon. It will be lost to dawn twilight at around 03:37, 24° above your western horizon.
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|
Name
τ¹-Ser
|
Object type
Star
|
Other names
Position
| Right ascension: | 15h25m47s [4] |
| Declination: | +15°25'40" [4] |
| Constellation: | Serpens Caput |
| Magnitude: | 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): | -1.88 |
Visibility from Cambridge
All times shown in Cambridge local time.