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HIP 108364

HIP 108364 DoubleStar Cep Visible Level 1 Naked eye / Binoculars - Requires steady seeing
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Physical Properties

Magnitude 6.43
Spectral Type B2V
Star Color Blue-white (B-V -0.05)

Position & Identifiers

RA 21h 57m 11.1s
Dec +66° 09' 22.0"
Constellation Cep
HR 8384
HIP 108364

Visibility

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Multiple Star System

Separation 101.0″
Companion Mag 6.8
Position Angle 127°
Star Colors A: Blue-white B: Blue-white
Discoverer ARY 43

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 127° A (6.4) B (6.8)

Sep: 101.0″ · PA: 127° · 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 Fusion

Stellar Notes

Companion HD 208971, 7.0, K5III-IV, probably optical.
2.9899d, K 116.2k/s, V0 -10.6k/s, msin3i 2.47, asini 4.68.
IR catalogue indicates Sp. K5, therefore the secondary of the binary.
Cep OB2.

Survey Image

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