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Name
  R Equ  
AAVSO UID
000-BCN-568 (6913 observations)  
Constellation
Equuleus Sequence
J2000.0
21 13 11.49 +12 48 06.2  (318.29787 +12.80172) Search nearby
B1950.0 21 10 47.87 +12 35 42.1
Proper motion
RA: -9.2 +/- 3.1 mas/yDec: -13.6 +/- 1.2 mas/ySource: UCAC4
Galactic coord. 62.733 -23.714
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J21131151+1248062 AAVSO 2108+12 AN 18.1900
ASAS J211311+1248.1 BD+12 4573 GSC 01113-02315
HD 202051 IRAS 21107+1235 NSVS J2113116+124803
USNO-B1.0 1028-0739031    
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Variability type
M
Spectral type M3e-M4e
Mag. range
8.4 - 15.0 V
Discoverer T.D. Anderson, 1900
Epoch
11 Nov 2012 (HJD 2456243.00) Ephemeris
Outburst --
Period 262.28 d
Rise/eclipse dur. 43%
Remarks
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1 Wunder, Edgar Before JD 2445000: Max = 2418978 + 260.17 d * E Since JD 2445000: See table
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References
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1 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 T. Karlsson, Maxima of Mira stars --
4 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
External Links
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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 = 4.78H = 4.09K = 3.66J - K = 1.12
AllWISE W1 = 3.88W2 = 3.29W3 = 2.83W4 = 2.27W1 - W2 = 0.59W3 - W4 = 0.55
APASS-DR9 B = 13.64V = 12.23g' = 12.98r' = 11.19i' = 8.57B - V = 1.41
Images
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Supporting Documents
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1 Phase diagram, O-C diagram, elements Wunder, Edgar 2013-04-18 15:09 UTC
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Campaigns/Programs
 LPV Program
Revision History
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3 Wunder, Edgar 2013-04-12 20:32 UTC V magnitude range from ASAS3; elements and M-m from AAVSO International Database
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.