47 Cas
HIP 9727; 47 Cas
DoubleStar
Cassiopeia
(Cas)
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.38
Spectral Type
F0Vn
Star Color
Yellow-white
(B-V 0.31)
Distance
116 ly
Position & Identifiers
RA
02h 05m 07.4s
Dec
+77° 16' 53.0"
Constellation
Cassiopeia
(Cas)
HR
581
HIP
9727
Flamsteed
47 Cas
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Visibility
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Multiple Star System B: optical
Separation
97.2″
Companion Mag
10.1
Position Angle
211°
Star Colors
A: Yellow-white
B: Yellow
Discoverer
SHJ 22
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 97.2″ · PA: 211° · 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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