42 Cet
Observable Double Star
Fair (26/100)
Sep: 1.6", Companion: mag 7.0
HIP 6226; 42 Cet
DoubleStar
Cet
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.87
Spectral Type
G8III+A7V
Star Color
Yellow
(B-V 0.64)
Distance
362.4 ly
Position & Identifiers
RA
01h 19m 48.3s
Dec
-00° 30' 32.0"
Constellation
Cet
HR
385
HIP
6226
Flamsteed
42 Cet
Double Cat
1081
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Visibility
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Multiple Star System
Components
3
Component IDs
AxBC
Separation
1.6″
Companion Mag
7.0
Companion Sp
G4III
Position Angle
21°
Star Colors
A: Yellow
B: Yellow
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.6″ · PA: 21° · 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
BC 7.4, 7.6, 21.5y, a = 0.136". Combined spectrum A1V.
Also classified G4:III + A2:V and G5III-IV + A5V.
Survey Image
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