HIP 81231
HIP 81231
DoubleStar
Her
Visible
Level 1
Naked eye / Binoculars - Requires steady seeing
Physical Properties
Magnitude
6.41
Spectral Type
A2V
Star Color
White
(B-V 0.05)
Position & Identifiers
RA
16h 35m 26.3s
Dec
+17° 03' 26.0"
Constellation
Her
HR
6169
HIP
81231
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Visibility
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Multiple Star System
Separation
155.3″
Companion Mag
7.3
Position Angle
1°
Star Colors
A: White
B: Yellow-white
Discoverer
WEB 6
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 155.3″ · PA: 1° · 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
Companion A2V, CPM; vsini 80k/s.
10.56d, K 62.4k/s, V0 -9.9k/s, msin3i 2.20, asini 8.18.
Survey Image
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