σ-Lib (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , σ-Lib is difficult to observe as it will appear no higher than 18° above the horizon. It will become visible at around 21:37 (EDT), 18° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:24.
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Name
σ-Lib
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Object type
Star
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Other names
Position
| Right ascension: | 15h04m04s [4] |
| Declination: | −25°16'55" [4] |
| Constellation: | Libra |
| Magnitude: Variable | 3.28 (V) [2] 5.40 (BT) [2] 3.46 (VT) [2] 2.30 (G) [4] 3.91 (BP) [4] 2.00 (RP) [4] |
| Distance: | 79.8 parsec 260.0 lightyrs [4] |
| B-V Color (mag): | 1.65 |
| Proper motion (speed): | 85.0 mas/yr[4] |
| Proper motion (pos ang): | 239.9° |
Derived quantities
| Absolute mag (V): | -1.22 |
Sources