Theta Gru
Observable Double Star
Fair (24/100)
Sep: 1.5", Companion: mag 6.6
HIP 114131; Theta Gru
DoubleStar
Gru
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
4.28
Spectral Type
F5mDel Del
Star Color
Yellow-white
(B-V 0.42)
Distance
191.9 ly
Position & Identifiers
RA
23h 06m 52.8s
Dec
-43° 31' 14.0"
Constellation
Gru
HR
8787
HIP
114131
Bayer
Theta
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
1.5″
Companion Mag
6.6
Position Angle
115°
Star Colors
A: Yellow-white
B: Orange
Discoverer
JC 20
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.5″ · PA: 115° · 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
Also classified F6IV, or Delta Sct.
0.027".
Survey Image
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