Theta Ind
Observable Double Star
Good (56/100)
Sep: 7.3", Companion: mag 6.9
HIP 105319; Theta Ind
DoubleStar
Ind
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.39
Spectral Type
A5V
Star Color
Yellow-white
(B-V 0.19)
Distance
75.8 ly
Position & Identifiers
RA
21h 19m 52.0s
Dec
-53° 26' 59.0"
Constellation
Ind
HR
8140
HIP
105319
Bayer
Theta
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Visibility
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Multiple Star System
Separation
7.3″
Companion Mag
6.9
Companion Sp
A5V
Position Angle
269°
Star Colors
A: Yellow-white
B: Yellow-white
Discoverer
HJ 5258
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 7.3″ · PA: 269° · 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
Companion A7V or G0V.
0.048".
Survey Image
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