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60 Cyg

HIP 103732; 60 Cyg DoubleStar Cyg Visible Level 4 Large telescope (10"+) - Requires steady seeing
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Physical Properties

Magnitude 5.37
Spectral Type B1Ve
Star Color Blue (B-V -0.21)

Position & Identifiers

RA 21h 01m 10.9s
Dec +46° 09' 21.0"
Constellation Cyg
HR 8053
HIP 103732
Flamsteed 60 Cyg
Variable ID V1931 Cyg
Double Cat 14549

Visibility

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Multiple Star System

Separation 2.9″
Companion Mag 9.5
Companion Sp sdO
Position Angle 159°
Star Colors A: Blue B: Blue-white
Discoverer STT 426

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 159° A (5.4) B (9.5)

Sep: 2.9″ · PA: 159° · N up, E left

At limit · 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

5.34 - 5.48V, probably eclipsing; same period as SB.
Shell star. Long-term variation in hydrogen emission.
2.48257d.

Survey Image

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