Tau Lup
HIP 70574; Tau1 Lup
Observable Double Star
Good (40/100)
Sep: 156.7", Companion: mag 8.9
HIP 70574; Tau1 Lup
DoubleStar
Lup
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.56
Variable Type
Beta Cephei (Pulsating)
Spectral Type
B2IV
Star Color
Blue-white
(B-V -0.15)
Position & Identifiers
RA
14h 26m 08.2s
Dec
-45° 13' 17.0"
Constellation
Lup
HR
5395
HIP
70574
Bayer
Tau1
Variable ID
Tau1 Lup
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Visibility
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Multiple Star System
Separation
156.7″
Companion Mag
8.9
Position Angle
204°
Star Colors
A: Blue-white
B: Yellow-white
Discoverer
DUN 160
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 156.7″ · PA: 204° · 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 4.54 - 4.58V, 4.36 - 4.43B, 4.10 - 4.14p, 0.17738884d.
Sco-Cen assoc.
Survey Image
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