66 Cet
Observable Double Star
Good (57/100)
Sep: 16.8", Companion: mag 7.7
HIP 10305; 66 Cet
DoubleStar
Cet
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.54
Spectral Type
F8V
Star Color
Yellow
(B-V 0.57)
Distance
72.5 ly
Position & Identifiers
RA
02h 12m 47.5s
Dec
-02° 23' 37.0"
Constellation
Cet
HR
650
HIP
10305
Flamsteed
66 Cet
Double Cat
1703
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
16.8″
Companion Mag
7.7
Companion Sp
G1V
Position Angle
235°
Star Colors
A: Yellow
B: Yellow
Discoverer
STF 231
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 16.8″ · PA: 235° · 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
AB binary; B, dG4; C, 11.5v at 173".
0.036".
Survey Image
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