See HR 6084
HIP 81266; Tau Sco; 23 Sco
HIP 81266; Tau Sco; 23 Sco
Star
Sco
Visible
Level 1
Naked eye / Binoculars
Physical Properties
Magnitude
2.82
Spectral Type
B0IV
Star Color
Blue
(B-V -0.25)
Distance
447.3 ly
Position & Identifiers
RA
16h 35m 53.0s
Dec
-28° 12' 58.0"
Constellation
Sco
HR
6165
HIP
81266
Bayer
Tau
Flamsteed
23 Sco
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Visibility
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Multiple Star System
Separation
0.0″
Companion Mag
5.8
Position Angle
71°
Star Colors
A: Blue
Discoverer
RIZ 18
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
Sep: 0.0″ · PA: 71° · 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
Color excess E(B-V) = +0.06.
Sco OB2; Sco-Cen cluster; Sco-Cen assoc.; upper Sco region. Faint HII region surrounds star. Member of Pleiades group.
Spectra indicate high velocity stellar wind. Lyman beta observed from COPERNICUS. High resolution UV spectrum | obtained from COPERNICUS. Large amount of atomic hydrogen, but only small amount of molecular hydrogen in line of sight.
See HR 6084.
Survey Image
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