52 Her
Observable Double Star
Fair (25/100)
Sep: 1.8", Companion: mag 8.4
HIP 82321; 52 Her
DoubleStar
Her
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
4.82
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
A2VpSrCrEu
Star Color
White
(B-V 0.09)
Distance
326.2 ly
Position & Identifiers
RA
16h 49m 14.2s
Dec
+45° 59' 00.0"
Constellation
Her
HR
6254
HIP
82321
Flamsteed
52 Her
Variable ID
V637 Her
Double Cat
10227
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Visibility
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Multiple Star System
Components
5
Component IDs
AxBC
Separation
1.8″
Companion Mag
8.4
Position Angle
296°
Star Colors
A: White
B: Yellow
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.8″ · PA: 296° · N up, E left
Unresolved · 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 10227A, Alpha CV 4.78 - 4.83V, 3.8567d. K line varies, 3.88d.
BC 9.0, 9.1, 56.75y, a = 0.267". AxBC physical.
Sirius group. UMa stream.
Oxygen deficient relative to magnesium. Magnetic star, also classified A3VpSrCrEuMn.
0.024".
Survey Image
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