70 Her
HIP 84887; 70 Her
DoubleStar
Her
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.12
Spectral Type
A2V
Star Color
Blue-white
(B-V -0.03)
Distance
326.2 ly
Position & Identifiers
RA
17h 20m 54.2s
Dec
+24° 29' 58.0"
Constellation
Her
HR
6457
HIP
84887
Flamsteed
70 Her
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
223.3″
Companion Mag
9.3
Position Angle
56°
Star Colors
A: Blue-white
B: Yellow
Discoverer
S 687
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 223.3″ · PA: 56° · 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.
Survey Image
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