Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
  LX Cyg  
000-BCP-624 (2714 observations)  
Cygnus Sequence
21 55 57.03 +48 20 52.5  (328.98761 +48.34792) Search nearby
B1950.0 21 54 02.12 +48 06 35.8
Proper motion
RA: -2.3 +/- 0.9 mas/yDec: -2.3 +/- 0.5 mas/ySource: UCAC4
Galactic coord. 95.396 -4.916
Other names

(Internal only)
2MASS J21555703+4820525 AAVSO 2152+47A AN 348.1929
CSS 1286 GSC 03608-00738 IOMC 3608000087
IRAS 21540+4806 S1* 696 TYC 3608-738-1
(Not logged in)  Add name
Variability type
Spectral type C
Mag. range
9.1 - 15.1 V
Discoverer --
07 Dec 1999 (HJD 2451520) Ephemeris
Outburst --
Period 588 d
Rise/eclipse dur. --
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Otero, Sebastian Alberto Period increased from 460 d. to 588 d. between 1975 and 1995. Spectral type changed from S to SC and finally to C.
2 Otero, Sebastian Alberto VSP Note: 13.1 mag. star 10" to the S and 15.1 mag. star 13" to the SE.
3 GCVS Team P var. Max = 2432775 + 460.0d*E (JD2415000 - 33300) [N.K.Semakin, Perem. Zvezdy 10, N2, 100, 1955.]; since JD2437900 - see Table. SC 7/9-e - SC 8/8.5e.
(Not logged in)  Add remark
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties
2 Uttenthaler, S.; Meingast, S.; Lebzelter, T.; et al., 2016, LX Cygni: A
carbon star is born
3 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
4 N.K.Semakin, Perem. Zvezdy 10, N2, 100, 1955. 1954PZ.....10..100S
5 T. Karlsson, Maxima of Mira stars --
6 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    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 = 5.13H = 3.91K = 2.93J - K = 2.20
AllWISE W3 = 1.56W4 = 1.33W3 - W4 = 0.23
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
 LPV Double Trouble Campaign
 Percy's Unusual LPVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
5 Otero, Sebastian Alberto 2020-05-14 20:51 UTC Gaia DR2 position.
4 Otero, Sebastian Alberto 2016-11-01 15:04 UTC Spectral type from 2016A&A...585A.145U.
3 Otero, Sebastian Alberto 2014-03-04 21:55 UTC Period, epoch and range from AAVSO data. UCAC4 position.
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.