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Latest Details
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Name
  Z Cyg  
AAVSO UID
000-BCK-199 (24450 observations)  
Constellation
Cygnus Sequence
J2000.0
20 01 27.46 +50 02 32.6  (300.36442 +50.04239) Search nearby
B1950.0 20 00 02.42 +49 54 09.0
Proper motion
RA: 14.5 +/- 0.9 mas/yDec: -8.0 +/- 1.3 mas/ySource: UCAC4
Galactic coord. 84.442 +10.230
Other names

(Internal only)
AAVSO 1958+49 ASASSN-V J200127.47+500231.8 BD+49 3160
HD 190163 IRC +50314 RAFGL 5456S
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Variability type
M
Spectral type M5e-M9e
Mag. range
7.1 - 14.7 V
Discoverer Espin, 1887
Epoch
13 Jan 1981 (HJD 2444618.00) Ephemeris
Outburst --
Period 263.69 d
Rise/eclipse dur. 45%  (119 d)
Remarks
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1 GCVS Team OH, H2O emission.
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 T. Köhl, AN 196, 145, 1913. 1913AN....196..145K
2 T. Karlsson, Maxima of Mira stars --
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.		 --
External Links
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Location    Go   
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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 = 4.18H = 3.26K = 2.56J - K = 1.62
AllWISE W3 = -0.02W4 = -1.34W3 - W4 = 1.32
APASS-DR9 B = 13.93V = 11.04g' = 12.30r' = 9.89i' = 6.23B - V = 2.89
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 01 27.46 +50 02 32.6 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Campaigns/Programs
 Legacy LPV Program
 LPV Program
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Billiaert, Bruno 2015-12-06 00:29 UTC Added reference and discoverer.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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