Alpha Lup
HIP 71860; Alpha Lup
DoubleStar
Lup
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.30
Variable Type
Beta Cephei (Pulsating)
Spectral Type
B2IV
Star Color
Blue
(B-V -0.20)
Distance
464.3 ly
Position & Identifiers
RA
14h 41m 55.8s
Dec
-47° 23' 18.0"
Constellation
Lup
HR
5469
HIP
71860
Bayer
Alpha
Variable ID
Alp Lup
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Visibility
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Multiple Star System
Separation
25.2″
Companion Mag
14.0
Position Angle
232°
Star Colors
A: Blue
Discoverer
HDO 238
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 25.2″ · PA: 232° · N up, E left
Resolved · 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
Beta C 2.29 - 2.34V, 0.2598466d. Period varies. Possible secondary period 3.145d. Modulation period 10y?
Sco-Cen assoc.; certain member of the Sco-Cen cluster; upper Cen group of Sco-Cen assoc.
Also classified B1.5Vn. Soft X-ray source.
Survey Image
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