39 Her
HIP 81729; 39 Her
DoubleStar
Her
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.92
Spectral Type
F2III
Star Color
Yellow-white
(B-V 0.40)
Position & Identifiers
RA
16h 41m 36.7s
Dec
+26° 55' 01.0"
Constellation
Her
HR
6213
HIP
81729
Flamsteed
39 Her
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Visibility
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Multiple Star System
Separation
0.4″
Position Angle
50°
Star Colors
A: Yellow-white
Discoverer
CHR 57
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.4″ · PA: 50° · 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
2.3076d, K 100.6k/s, V0 -9.0k/s, msin3i 1.14, asini 3.19.
Survey Image
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