Sigma Her
HIP 81126; Sigma Her; 35 Her
DoubleStar
Her
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
4.20
Spectral Type
B9V
Star Color
Blue-white
(B-V -0.01)
Distance
326.2 ly
Position & Identifiers
RA
16h 34m 06.2s
Dec
+42° 26' 13.0"
Constellation
Her
HR
6168
HIP
81126
Bayer
Sigma
Flamsteed
35 Her
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Separation
0.1″
Companion Mag
7.7
Position Angle
15°
Star Colors
A: Blue-white
Discoverer
LAB 4
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.1″ · PA: 15° · N up, E left
Unresolved · 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
Sep. 0.067". Noted as double by speckle interferometry in 1971-2, unresolved at Mayall 4-meter in 1976. Spectrum | double-lined. Resolved by speckle observations 1986.45 (Blazit et al. 1987, A&AS, 71, 57).
Survey Image
Loading survey image…