Eta Her

HIP 81833; Eta Her; 44 Her DoubleStar Her Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 3.53

Spectral Type G7III Fe-1

Star Color Orange (B-V 0.92)

Distance 108.6 ly

Position & Identifiers

RA 16h 42m 53.8s

Dec +38° 55' 20.0"

Constellation Her

HR 6220

HIP 81833

Bayer Eta

Flamsteed 44 Her

Visibility

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Multiple Star System

Separation 116.4″

Companion Mag 11.7

Position Angle 266°

Star Colors A: Orange

Discoverer STF2093

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 116.4″ · PA: 266° · 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.

Stellar Notes

Double Star

Companion questioned.

Survey Image

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