Gamma Crt
Observable Double Star
Good (55/100)
Sep: 4.4", Companion: mag 7.9
HIP 55705; Gamma Crt; 15 Crt
DoubleStar
Crt
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
4.08
Spectral Type
A5V
Star Color
Yellow-white
(B-V 0.21)
Distance
116.5 ly
Position & Identifiers
RA
11h 24m 52.9s
Dec
-17° 41' 02.0"
Constellation
Crt
HR
4405
HIP
55705
Bayer
Gamma
Flamsteed
15 Crt
Double Cat
8153
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Visibility
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Multiple Star System
Separation
4.4″
Companion Mag
7.9
Position Angle
92°
Star Colors
A: Yellow-white
B: Orange
Discoverer
HJ 840
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.4″ · PA: 92° · 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
0.017".
Survey Image
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