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  S Del  
000-BCM-271 (21941 observations)  
Delphinus Sequence
20 43 04.88 +17 05 17.3  (310.77033 +17.08814) Search nearby
B1950.0 20 40 46.67 +16 54 26.4
Proper motion
RA: 4.34 +/- 2.85 mas/yDec: 3.78 +/- 1.73 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 61.793 -15.321
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 2038+16 ASAS J204305+1705.1 BD+16 4351
HD 197420 HIP 102246 IRC +20477
SAO 106422    
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Variability type
Spectral type M5e-M8
Mag. range
8.3 - 12.4 V
Discoverer --
09 Oct 1981 (HJD 2444887) Ephemeris
Outburst --
Period 277.75 d
Rise/eclipse dur. 52%  (144 d)
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1 GCVS Team VB A (B 56", 342deg). Double maxima are sometimes observed.
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Click reference title/citation to view in new window. Roll over index number to view submission details.
1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 T. Karlsson, Maxima of Mira stars --
3 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
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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 = 3.50H = 2.56K = 2.14J - K = 1.36
AllWISE W3 = 1.02W4 = 0.59W3 - W4 = 0.44
APASS-DR9 B = 12.61V = 11.00g' = 11.93r' = 10.03i' = 7.26B - V = 1.62
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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 Legacy LPV Program
 LPV Program
Revision History
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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.