Zeta Lib
HIP 75730; Zeta1 Lib; 32 Lib
HIP 75730; Zeta1 Lib; 32 Lib
DoubleStar
Lib
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.64
Spectral Type
K5III
Star Color
Red
(B-V 1.55)
Position & Identifiers
RA
15h 28m 15.4s
Dec
-16° 42' 59.0"
Constellation
Lib
HR
5743
HIP
75730
Bayer
Zeta1
Flamsteed
32 Lib
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Visibility
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Multiple Star System
Separation
0.1″
Companion Mag
6.7
Position Angle
-1°
Star Colors
A: Red
Discoverer
OCC 953
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.1″ · PA: -1° · N up, E left
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
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 Notes
Zeta1 Fl 32, Zeta2 Fl 34, Zeta3 Fl 34 and Zeta4 Fl 35 Lib are, respectively, HR 5743, HD 137949 (6.69V, | F0Vp), HR 5750 and 5764. HD 137949 is included in the BS Supplement. HR 5764 also called simply Zeta Lib.
Survey Image
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