Revise New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
U Cyg
AAVSO UID
Constellation
J2000.0
B1950.0
20 18 03.49 +47 44 08.3
Proper motion
RA: -2.299 +/- 0.043 mas/y Dec: 2.505 +/- 0.044 mas/y Source: Gaia DR1
Galactic coord.
84.206 +6.566
Other names(Internal only)
AAVSO 2016+47
ASASSN-V J201936.64+475339.0
BD+47 3077
HD 193680
HIP 100219
IRC +50324
RAFGL 2556
SAO 49477
(Not logged in) Add name
Variability type
M
Spectral type
C7,2e-C9,2(Npe)
Mag. range
6.5 - 11.7 V
Discoverer
Knott (1871)
Epoch
Outburst
--
Period
465.0 d
Rise/eclipse dur.
48% (223 d)
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1
GCVS Team
VB A (B 7.8m, 63.5", 51deg). P var. Max = 2406455 + 461.57d*E (JD2404590 - 13900); Max = 2414827 + 470.76d*E (JD2413900 - 19940); Max = 2421806 + 455.95d*E (JD2419940 - 27380); Max = 2427848 + 472.85d*E (JD2427380 - 35750); since JD2435750 - see Table.
(Not logged in) Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location
-- Select --
AAVSO Variable Star Plotter
AAVSO Light Curve
AAVSO WebObs
APASS
AAVSOnet EPD
SIMBAD
SIMBAD Clickable Map
SIMBAD Coordinate query
VizieR Search
Aladin Java Applet
CDS Portal
CDS Biblio
SDSS Navigate Tool
GCVS
ASAS-SN Variable
ASAS-SN Sky Patrol
Hipparcos Epoch Photometry Data
Hipparcos Epoch Photometry Plot
NSVS
CRTS
ZTF
SuperWASP
Pan-STARRS1 Data
Pan-STARRS1 Images
SkyMorph
Kamogata Wide-field Survey (KWS)
Go
Select a Location for more details.
Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service . These data may not be complete.
2MASS
J = 2.19 H = 1.03 K = 0.46 J - K = 1.73
AllWISE
W3 = -0.89 W4 = -1.47 W3 - W4 = 0.58
Images
Please review Digitized Sky Survey Acknowledgment and Copyright .
Image not downloaded. Click Retrieve Image to download and view.
Retrieve image
Supporting Documents
There are currently no supporting documents on file for this star.
(Not logged in) Add document
Campaigns/Programs
Legacy LPV Program
LPV Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
