Theta Cru
HIP 58758; Theta1 Cru
HIP 58758; Theta1 Cru
DoubleStar
Cru
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
4.33
Spectral Type
Am
Star Color
Yellow-white
(B-V 0.27)
Distance
155.3 ly
Position & Identifiers
RA
12h 03m 01.5s
Dec
-63° 18' 46.0"
Constellation
Cru
HR
4599
HIP
58758
Bayer
Theta1
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Visibility
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Multiple Star System
Separation
5.8″
Companion Mag
13.8
Position Angle
321°
Star Colors
A: Yellow-white
Discoverer
CPO 55
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 5.8″ · PA: 321° · 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
24.4828d, K 46.1k/s, V0 -2.8k/s, msin3i 0.741, asini 12.3.
Hyades moving group.
Survey Image
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