56 Per
HIP 20591; 56 Per
DoubleStar
Per
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.76
Spectral Type
F4V
Star Color
Yellow-white
(B-V 0.40)
Distance
652.3 ly
Position & Identifiers
RA
04h 24m 37.4s
Dec
+33° 57' 35.0"
Constellation
Per
HR
1379
HIP
20591
Flamsteed
56 Per
Double Cat
3188
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Visibility
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Multiple Star System
Separation
4.2″
Companion Mag
9.2
Companion Sp
DA3.1
Position Angle
13°
Star Colors
A: Yellow-white
Discoverer
STT 81
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.2″ · PA: 13° · 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
ADS 3188B, 9.6 - 11.3v.
0.042".
Survey Image
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