SU Cyg
Excellent (62/100)
HIP 97150
VariableStar
Cyg
Visible
Level 2
Small telescope (4") - Monitor brightness changes
Physical Properties
Magnitude
6.82
Range
6.44 - 7.22
Period
3.8 days
Variable Type
Classical Cepheid
Spectral Type
F2I
Star Color
Yellow
(B-V 0.64)
Position & Identifiers
RA
19h 44m 48.7s
Dec
+29° 15' 53.0"
Constellation
Cyg
HR
7518
HIP
97150
Variable ID
SU Cyg
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Light Curve
Comparison Stars for SU Cyg (6.4–7.2)
Nearby stable stars for estimating brightness (AAVSO)
Loading comparison stars…
Multiple Star System
Separation
0.0″
Companion Mag
8.0
Companion Sp
B8V
Position Angle
167°
Star Colors
A: Yellow
B: Blue-white
Discoverer
ISM 4
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 Fusion
Stellar Notes
CDelta 6.44 - 7.22V, 3.8455473d. Period changes.
Also classified F0-G1II, G0III and F2-G0II-III + B7V.
Survey Image
Loading survey image…