Brachium
HIP 73714; Sigma Lib; 20 Lib
HIP 73714; Sigma Lib; 20 Lib
Star
Lib
Visible
Level 1
Naked eye / Binoculars
Physical Properties
Magnitude
3.29
Range
3.2 - 3.46
Period
20.0 days
Variable Type
Semi-Regular Variable (Late-type Giant)
Spectral Type
M2.5III
Star Color
Red
(B-V 1.70)
Distance
288 ly
Position & Identifiers
RA
15h 04m 04.2s
Dec
-25° 16' 55.0"
Constellation
Lib
HR
5603
HIP
73714
Bayer
Sigma
Flamsteed
20 Lib
Variable ID
Sig Lib
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Visibility
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Light Curve
Multiple Star System
Separation
69.7″
Companion Mag
16.4
Position Angle
51°
Star Colors
A: Red
Discoverer
UC 2911
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Fusion
Stellar Notes
SRb 3.20 - 3.46V, 20d.
Ultraviolet FeII emission.
Brachium; Cornu; Zuben el Genubi; Zuban al Akrab; Zuben Hakrabi. Sigma Lib is also Gamma Sco, in Lib.
Survey Image
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