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Name
  V Del  
AAVSO UID
000-BCM-533 (7090 observations)  
Constellation
Delphinus Sequence
J2000.0
20 47 46.04 +19 20 06.8  (311.94183 +19.33522) Search nearby
B1950.0 20 45 29.72 +19 09 00.6
Proper motion
RA: 7.3 +/- 2.3 mas/yDec: -0.1 +/- 3.7 mas/ySource: UCAC4
Galactic coord. 64.355 -14.905
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J20474604+1920068 AAVSO 2043+18 ASAS J204746+1920.1
BD+18 4620 DO 19426 HD 198136
HV 15 IRAS 20454+1908 IRC +20484
NSVS J2047459+192008 RAFGL 2654  
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Variability type
M
Spectral type M4e-M6e
Mag. range
8.1 - 17.0: V
Discoverer --
Epoch
26 Jul 2005 (HJD 2453578) Ephemeris
Outburst --
Period 527 d
Rise/eclipse dur. 42%
Remarks
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1 Otero, Sebastian Alberto Period varies. The value given in the table is valid since 2000.
2 Otero, Sebastian Alberto VSP Note: 16.2 mag. star 12" to the SSE.
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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 Pojmanski, G., 2002, The All Sky Automated Survey 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 = 4.00H = 3.04K = 2.22J - K = 1.78
AllWISE W3 = 0.07W4 = -0.90W3 - W4 = 0.97
APASS-DR9 B = 15.30V = 13.49g' = 13.90r' = 11.76i' = 6.66B - V = 1.80
GALEX-DR5 NUV = 21.60
Images
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Supporting Documents
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Campaigns/Programs
 LPV Program
Revision History
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3 Otero, Sebastian Alberto 2014-03-03 23:47 UTC UCAC4 position. Period from AAVSO and ASAS-3 data. Epoch from ASAS-3 data. Minimum magnitude from AAVSO V data.
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.