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Name
  BX Del  
AAVSO UID
000-BDQ-103 (1071 observations)  
Constellation
Delphinus Sequence
J2000.0
20 21 18.97 +18 26 16.3  (305.32904 +18.43786) Search nearby
B1950.0 20 19 03.40 +18 16 41.0
Proper motion
RA: -1.190 +/- 3.691 mas/yDec: -5.465 +/- 2.233 mas/ySource: Gaia DR1
Galactic coord. 59.939 -10.281
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J20211896+1826163 AN 133.1930 ASAS J202119+1826.3
ASASSN-V J202119.01+182616.5 GSC 01635-01123 TYC 1635-1123-1
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Variability type
CWB
Spectral type F0-F8
Mag. range
11.79 - 12.57 V
Discoverer --
Epoch
09 Jul 1963 (HJD 2438219.531) Ephemeris
Outburst --
Period 1.091787 d
Rise/eclipse dur. 25%  (6.55 h)
Remarks
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1 GCVS Team Delta(S) = 0.
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References
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1 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
2 G.A.Lange, Astron. Tsirk. N192, 1958. --
3 C.Hoffmeister, Sonn Mitt N22, 1933. 1933MiSon..22....1H
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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 = 11.13H = 10.90K = 10.83J - K = 0.31
AllWISE W1 = 10.81W2 = 10.81W3 = 10.57W1 - W2 = 0.00
APASS-DR9 B = 12.77V = 12.31g' = 12.86r' = 12.15i' = 12.30B - V = 0.46
GALEX-DR5 NUV = 18.06
Images
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Supporting Documents
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Revision History
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4 Otero, Sebastian Alberto 2013-11-09 08:42 UTC Period from ASAS-3 data.
3 Otero, Sebastian Alberto 2011-01-12 04:27 UTC Primary record creation. Type confirmed with ASAS-3 data. UCAC3 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.

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