40 Cas
HIP 7650; 40 Cas
DoubleStar
Cassiopeia
(Cas)
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.28
Spectral Type
G8III
Star Color
Orange
(B-V 0.96)
Distance
192 ly
Position & Identifiers
RA
01h 38m 30.9s
Dec
+73° 02' 24.0"
Constellation
Cassiopeia
(Cas)
HR
456
HIP
7650
Flamsteed
40 Cas
Double Cat
1268
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Visibility
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Multiple Star System
Separation
52.9″
Companion Mag
11.7
Position Angle
236°
Star Colors
A: Orange
Discoverer
HJ 2054
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 52.9″ · PA: 236° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Size Comparison
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Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
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