Alpha Ind
HIP 101772; Alpha Ind
DoubleStar
Ind
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.11
Spectral Type
K0III-IV
Star Color
Orange
(B-V 1.00)
Distance
98.3 ly
Position & Identifiers
RA
20h 37m 34.0s
Dec
-47° 17' 29.0"
Constellation
Ind
HR
7869
HIP
101772
Bayer
Alpha
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
69.2″
Companion Mag
12.0
Position Angle
206°
Star Colors
A: Orange
Discoverer
HJ 5209
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 69.2″ · PA: 206° · 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.
Survey Image
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