7 Cep

HIP 105972; 7 Cep DoubleStar Cep Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 5.44

Spectral Type B7V

Star Color Blue-white (B-V -0.11)

Distance 543.6 ly

Position & Identifiers

RA 21h 27m 46.1s

Dec +66° 48' 33.0"

Constellation Cep

HR 8227

HIP 105972

Flamsteed 7 Cep

Visibility

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Multiple Star System

Separation 0.6″

Companion Mag 9.2

Position Angle 321°

Star Colors A: Blue-white B: Yellow

Discoverer DCH 115

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.6″ · PA: 321° · 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

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Survey Image

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