37 Her
Good (55/100)
HIP 81641; 37 Her
DoubleStar
Hercules
(Her)
Visible
Level 1
Naked eye / Binoculars - Requires steady seeing
Physical Properties
Magnitude
5.77
Spectral Type
A1V
Star Color
Blue-white
(B-V -0.02)
Distance
3,262 ly
Position & Identifiers
RA
16h 40m 38.7s
Dec
+04° 13' 11.0"
Constellation
Hercules
(Her)
HR
6195
HIP
81641
Flamsteed
37 Her
Double Cat
10149
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Visibility
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Multiple Star System
Components
4
Component IDs
AB
Separation
69.3″
Companion Mag
6.9
Companion Sp
A3IV
Position Angle
229°
Star Colors
A: Blue-white
B: White
Discoverer
STFA 31
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 69.3″ · PA: 229° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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 Fusion
Stellar Notes
Binary with HR 6194, q.v.
Light Travel Time Machine
Relativistic Travel
Survey Image
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