Theta Cyg
HIP 96441; Theta Cyg; 13 Cyg
DoubleStar
Cyg
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
4.48
Spectral Type
F4V
Star Color
Yellow-white
(B-V 0.38)
Distance
58.2 ly
Position & Identifiers
RA
19h 36m 26.5s
Dec
+50° 13' 16.0"
Constellation
Cyg
HR
7469
HIP
96441
Bayer
Theta
Flamsteed
13 Cyg
Double Cat
12695
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Visibility
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Multiple Star System
Components
3
Component IDs
AC
Separation
2.1″
Companion Mag
12.9
Companion Sp
M2/3
Position Angle
71°
Star Colors
A: Yellow-white
B: Red
Discoverer
BU 1131
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 2.1″ · PA: 71° · 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
AB CPM. B, 13v at 3". C, optical.
Survey Image
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