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Latest Details
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Name
  2MASS J21551304+5516553  
AAVSO UID
000-BKR-214 (No observations)  
Constellation
Cygnus Sequence
J2000.0
21 55 13.41 +55 16 57.1  (328.80588 +55.28252) Search nearby
B1950.0 21 53 29.77 +55 02 42.5
Galactic coord. 99.601 +0.603
Other names

(Internal only)
GSC2.3 N1BV009148 UCAC4 727-077531 USNO-B1.0 1452-0376032
VSX J215513.0+551655 ZTF J215513.40+551657.0  
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Variability type
EW
Spectral type --
Mag. range
18.100 (0.772) g
Discoverer Javier Ruiz Fernández (Observatorio de Cantabria)
Epoch
16 Jun 2018 (HJD 2458285.9088) Ephemeris
Outburst --
Period 0.3216326 d  (7.71918 h)
Rise/eclipse dur. --
Remarks
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1 Ruiz, Javier Close double. Fainter companion (2MASS J1551341+5516569, ≈1 mag. fainter) 3" to the NE. Amplitude of variations reduced. It is uncertain which one is the variable star.
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References
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1 ZTF Catalog of Periodic Variable Stars (online data) 2020arXiv200508662C
2 Chen, X.; et al., 2020, The Zwicky Transient Facility Catalog of Periodic
Variable Stars		 2020arXiv200508662C
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 H = 12.20
AllWISE W1 = 11.66W2 = 11.64W3 = 11.68W1 - W2 = 0.01
APASS-DR9 B = 16.85V = 15.52g' = 16.21r' = 14.96i' = 14.40B - V = 1.33
Images
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Supporting Documents
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1 Phase curve Ruiz, Javier 2012-09-25 01:08 UTC
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Revision History
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2 Otero, Sebastian Alberto 2021-10-25 21:22 UTC Update from 2020arXiv200508662C. Gaia EDR3 position.
1 Ruiz, Javier 2012-09-25 03:09 UTC Initial submission.

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