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HIP 90344; 42 Dra

HIP 90344; 42 Dra DoubleStar Dra Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 4.82

Spectral Type K1.5IIIFe-0.5

Star Color Red (B-V 1.19)

Distance 155.3 ly

Position & Identifiers

RA 18h 25m 59.1s

Dec +65° 33' 49.0"

Constellation Dra

HR 6945

HIP 90344

Flamsteed 42 Dra

Visibility

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Multiple Star System

Separation 24.4″

Companion Mag 13.0

Position Angle 208°

Star Colors A: Red

Discoverer UC 3580

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 24.4″ · PA: 208° · 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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