Unukalhai (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , Unukalhai is visible all night. It will become visible at around 21:10 (EDT), 31° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:44, 54° above your southern horizon. It will be lost to dawn twilight at around 04:09, 32° above your south-western horizon.
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Name
Unukalhai
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Object type
Star
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Other names
Position
| Right ascension: | 15h44m16s [6] |
| Declination: | +06°25'32" [6] |
| Constellation: | Serpens Caput |
| Magnitude: | 2.63 (V) [3] 4.17 (BT) [2] 2.76 (VT) [2] 2.33 (G) [6] 3.32 (BP) [6] 1.98 (RP) [6] |
| Distance: | 22.8 parsec 74.2 lightyrs [6] |
| B-V Color (mag): | 1.18 |
| Proper motion (speed): | 141.5 mas/yr[6] |
| Proper motion (pos ang): | 71.2° |
Derived quantities
| Absolute mag (V): | 0.84 |
Sources