V822 Her
HIP 92593
DoubleStar
Her
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
6.14
Variable Type
Eclipsing Binary (Beta Lyrae-type)
Spectral Type
B8Vnn
Star Color
White
(B-V 0.00)
Position & Identifiers
RA
18h 52m 01.9s
Dec
+13° 57' 56.0"
Constellation
Her
HR
7109
HIP
92593
Variable ID
V822 Her
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Visibility
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Multiple Star System
Separation
0.1″
Companion Mag
8.6
Position Angle
347°
Star Colors
A: White
Discoverer
CHR 80
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.1″ · PA: 347° · 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
EB 6.12 - 6.30V.
1.391113d, K 165.8k/s, V0 -24.1k/s, msin3i 2.63, asini 3.17.
nn spectral type probably due to unresolved double lines on classification plates (Hube et al. 1988, AJ, 95, 199). | Spectral type of secondary similar to that of primary (late B). vsini of primary and secondary 96 and 91k/s, | respectively.
Survey Image
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