29 Cyg
Observable Double Star
Good (51/100)
Sep: 215.3", Companion: mag 6.7
HIP 99770; 29 Cyg
DoubleStar
Cyg
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.97
Variable Type
Delta Scuti (Pulsating)
Spectral Type
A2V
Star Color
White
(B-V 0.14)
Distance
90.6 ly
Position & Identifiers
RA
20h 14m 32.0s
Dec
+36° 48' 23.0"
Constellation
Cyg
HR
7736
HIP
99770
Flamsteed
29 Cyg
Variable ID
V1644 Cyg
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Components
5
Component IDs
AB
Separation
215.3″
Companion Mag
6.7
Position Angle
155°
Star Colors
A: White
B: Yellow
Discoverer
ENG 72
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 215.3″ · PA: 155° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
Querying VizieR for stellar data…
Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
Loading HR diagram…
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
Delta Sct 4.94 - 4.97V, 0.031d. Lambda Boo-type star in Delta Sct instability strip.
B is K1III, optical, vsini =<54k/s.
Survey Image
Loading survey image…