37 Her
Observable Double Star
Good (55/100)
Sep: 69.3", Companion: mag 6.9
HIP 81641; 37 Her
DoubleStar
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
3261.6 ly
Position & Identifiers
RA
16h 40m 38.7s
Dec
+04° 13' 11.0"
Constellation
Her
HR
6195
HIP
81641
Flamsteed
37 Her
Double Cat
10149
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
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: 3.1″
Size Comparison
Querying VizieR for stellar data…
Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
Loading HR diagram…
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
Binary with HR 6194, q.v.
Survey Image
Loading survey image…