Theta Cet
HIP 6537; Theta Cet; 45 Cet
DoubleStar
Cet
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.60
Spectral Type
K0 III
Star Color
Orange
(B-V 1.06)
Distance
113.8 ly
Position & Identifiers
RA
01h 24m 01.4s
Dec
-08° 11' 00.0"
Constellation
Cet
HR
402
HIP
6537
Bayer
Theta
Flamsteed
45 Cet
Double Cat
1118
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Visibility
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Multiple Star System
Separation
78.9″
Companion Mag
14.8
Position Angle
49°
Star Colors
A: Orange
Discoverer
BU 505
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 78.9″ · PA: 49° · 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
Probably optical.
Survey Image
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