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Latest Details
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Name
  RZ Cyg  
AAVSO UID
000-BCM-683 (9277 observations)  
Constellation
Cygnus Sequence
J2000.0
20 51 53.18 +47 21 20.4  (312.97158 +47.35567) Search nearby
B1950.0 20 50 12.53 +47 10 00.0
Proper motion
RA: 2.6 +/- 3.0 mas/yDec: -1.6 +/- 3.0 mas/ySource: UCAC4
Galactic coord. 87.034 +1.887
Other names

(Internal only)
2MASS J20515317+4721204 AAVSO 2048+46 ASASSN-V J205153.06+472120.6
BD+46 3080 BD+46 3080a GSC 03579-03803
IOMC 3579000042 IRAS 20502+4709 IRC +50347
RAFGL 2667 TIC 356665434 VES 339
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Variability type
SRA
Spectral type M4.5-M8.2IIIea
Mag. range
9.8 - 14.1 V
Discoverer Thomas Espin (1893)
Epoch
31 Aug 1968 (HJD 2440100.00) Ephemeris
Outburst --
Period 275.69 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team The shape of the light curve strongly varies. Alternation of high and low maxima, as well as of shallow and deep minima is observed, as a rule: 9.8m <= Max <= 12.0m. 11.8m <= Min <= 14.1m.
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References
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1 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 2014yCat....1.2023S
2 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 Cannon, A. J., 1907, Second catalogue of variable stars 1907AnHar..55....1C
4 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 = 2.20H = 1.06K = 0.59J - K = 1.61
AllWISE W3 = -0.84W4 = -1.96W3 - W4 = 1.11
APASS-DR9 B = 13.93V = 11.36g' = 13.41r' = 9.88i' = 6.50B - V = 2.57
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 51 53.18 +47 21 20.4 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Campaigns/Programs
 LPV Program
 Percy's Unusual LPVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Fernig, Leo 2022-04-22 13:36 UTC Discoverer updated from 1907AnHar..55....1C page 29
3 Otero, Sebastian Alberto 2021-02-17 19:15 UTC Spectral type from Skiff (2016) and the GCVS. Gaia EDR3 position.
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.