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Phi Cyg

HIP 96683; Phi Cyg; 12 Cyg Star Cyg Visible Level 2 Small telescope (4")
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Physical Properties

Magnitude 4.69
Spectral Type G8III-IV
Star Color Orange (B-V 0.97)
Distance 465.9 ly

Position & Identifiers

RA 19h 39m 22.6s
Dec +30° 09' 12.0"
Constellation Cyg
HR 7478
HIP 96683
Bayer Phi
Flamsteed 12 Cyg

Visibility

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Multiple Star System

Separation 0.0″
Companion Mag 5.1
Position Angle 247°
Star Colors A: Orange
Discoverer MCA 57

Eyepiece View

15x Dawes: 1.9″ TFOV: 3.3°
Realistic = true angular size
N E 247° A (4.7) B (5.1)

Sep: 0.0″ · PA: 247° · 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

1.188y, a = 0.026".
434.086d, K 26.8k/s, V0 +5.0k/s, msin3i 2.35, asini 137. Resolved by speckle interferometry. Rare example of | SB2 composed of 2 giants; similar spectra.

Survey Image

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