Alpha Lib
HIP 72603; Alpha1 Lib; 8 Lib
HIP 72603; Alpha1 Lib; 8 Lib
DoubleStar
Lib
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.15
Spectral Type
F4IV
Star Color
Yellow-white
(B-V 0.41)
Distance
65.2 ly
Position & Identifiers
RA
14h 50m 41.2s
Dec
-15° 59' 50.0"
Constellation
Lib
HR
5530
HIP
72603
Bayer
Alpha1
Flamsteed
8 Lib
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Visibility
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Multiple Star System
Components
3
Component IDs
O
Separation
0.2″
Companion Mag
9.4
Position Angle
340°
Star Colors
A: Yellow-white
B: Orange
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.2″ · PA: 340° · 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
CPM with HR 5531 at 231". Component A, HR 5531, is the suspected occultation double, 3.4, 3.8, sep. 0.01".
Survey Image
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