66 Cnc
Observable Double Star
Good (58/100)
Sep: 4.5", Companion: mag 8.6
HIP 44307; 66 Cnc
DoubleStar
Cnc
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.82
Spectral Type
A2V
Star Color
White
(B-V 0.00)
Position & Identifiers
RA
09h 01m 24.1s
Dec
+32° 15' 09.0"
Constellation
Cnc
HR
3587
HIP
44307
Flamsteed
66 Cnc
Double Cat
7137
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
4.5″
Companion Mag
8.6
Position Angle
135°
Star Colors
A: White
B: Yellow
Discoverer
STF1298
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.5″ · PA: 135° · 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 fixed.
Survey Image
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