Fang
HIP 78265; Pi Sco; 6 Sco
HIP 78265; Pi Sco; 6 Sco
DoubleStar
Sco
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.89
Spectral Type
B1 V + B2 V
Star Color
Blue
(B-V -0.19)
Distance
576.4 ly
Position & Identifiers
RA
15h 58m 51.1s
Dec
-26° 06' 51.0"
Constellation
Sco
HR
5944
HIP
78265
Bayer
Pi
Flamsteed
6 Sco
Double Cat
9862
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Visibility
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Multiple Star System
Components
3
Separation
49.7″
Companion Mag
11.9
Companion Sp
B2V
Position Angle
127°
Star Colors
A: Blue
B: Blue
Discoverer
BU 622
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 49.7″ · PA: 127° · 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
Primary is SB, 3.4, 6.4v sep. 0.0003"; third component, ADS 9862B, 12.2v at 50". vsini both A and B =<100k/s. | Component B, F4V, optical.
ADS 9862A, B1V, B2V, 1.5701d, K 131k/s, V0 -4k/s, msin3i 3.46, asini 2.83. Equal components.
Color excess E(B-V) = +0.08.
Sco OB2; Sco-Cen cluster; in HII region; upper Sco region; member of Pleiades group; in reflection nebula; member assoc. | Sco R1 at 145 pc.
Survey Image
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