32 Cyg
Observable Double Star
Good (47/100)
Sep: 208.5", Companion: mag 8.4
HIP 99848; 32 Cyg
DoubleStar
Cyg
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
3.98
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
K3Ib+B3V
Star Color
Red
(B-V 1.52)
Distance
233.0 ly
Position & Identifiers
RA
20h 15m 28.3s
Dec
+47° 42' 52.0"
Constellation
Cyg
HR
7751
HIP
99848
Flamsteed
32 Cyg
Variable ID
V1488 Cyg
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Visibility
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Multiple Star System
Separation
208.5″
Companion Mag
8.4
Companion Sp
B6V
Position Angle
175°
Star Colors
A: Red
B: Blue-white
Discoverer
S 743
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 208.5″ · PA: 175° · 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 Notes
EA 3.90 - 4.14V, 1147.4d. Period varies. Light var. outside eclipse. The K component may be slightly intrinsically | variable.
1147.8d, K 17.0k/s, V0 -5.7k/s, msin3i 9.15, asini 256. Also 390d suspected. Unresolved by speckle | interferometry. SKYLAB indicates cool star with hot companion.
Also classified K5Iab + B4IV-V and K3II + B9:V.
Originally called Omicron2 Cyg in GCVS, the name has been changed to V1488 Cyg because of much confusion as to | which star is Omicron1, which Omicron2. See HR 7730.
Survey Image
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