44 Oph

HIP 85340; 44 Oph DoubleStar Oph Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 4.17

Spectral Type A3m

Star Color Yellow-white (B-V 0.28)

Distance 72.5 ly

Position & Identifiers

RA 17h 26m 22.2s

Dec -24° 10' 31.0"

Constellation Oph

HR 6486

HIP 85340

Flamsteed 44 Oph

Visibility

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Multiple Star System

Separation 0.1″

Companion Mag 5.1

Position Angle -1°

Star Colors A: Yellow-white

Discoverer OCC 64

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.1″ · PA: -1° · N up, E left

Unresolved · 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

Group/Cluster

Hyades group.

Spectral

Also classified A9m:, F2:.

Survey Image

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