39 Cet
HIP 5951; 39 Cet
DoubleStar
Cet
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.41
Range
5.35 - 5.58
Period
76.500 days
Variable Type
RS CVn (Chromospherically Active)
Spectral Type
G5IIIe+dA
Star Color
Orange
(B-V 0.90)
Distance
217.4 ly
Position & Identifiers
RA
01h 16m 36.3s
Dec
-02° 30' 01.0"
Constellation
Cet
HR
373
HIP
5951
Flamsteed
39 Cet
Variable ID
AY Cet
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Visibility
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Light Curve
Multiple Star System
Separation
188.3″
Companion Mag
11.1
Position Angle
83°
Star Colors
A: Orange
Discoverer
BU 1358
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 188.3″ · PA: 83° · 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
RS, 5.35 - 5.58V.
Survey Image
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