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Name
  2MASS J20423819+3916161  
AAVSO UID
000-BND-842 (No observations)  
Constellation
Cygnus Sequence
J2000.0
20 42 38.21 +39 16 16.2  (310.65921 +39.27118) Search nearby
B1950.0 20 40 45.94 +39 05 26.3
Galactic coord. 79.683 -1.874
Other names

(Internal only)
BMAM-V373 Gaia DR2 2063666089910580224 IPHAS J204238.19+391616.3
USNO-B1.0 1292-0416933 WISE J204238.20+391616.9 ZTF J204238.20+391616.1
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Variability type
M
Spectral type --
Mag. range
17.7 - 20.2 r
Discoverer Mariusz Bajer
Epoch
07 Sep 2018 (HJD 2458368.585) Ephemeris
Outburst --
Period 127.2268646 d
Rise/eclipse dur. --
Remarks
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1 2020arXiv200508662C Epoch of minimum given. r-band period= 127.3411752 d.
2 Bajer, Mariusz WISE and 2MASS data show infrared excess. W3-W4= 2.71; J-K= 2.03; BP-G= 0.60.
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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
3 Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing,
Products, and Archive		 2019PASP..131a8003M
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Images
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Supporting Documents
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1 2MASS J20423819+3916161 light curve Bajer, Mariusz 2019-07-06 21:08 UTC HJD light curve data from ZTF r and ZTF g shifted to r standard (mag offset = -1.40).
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Revision History
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2 Otero, Sebastian Alberto 2021-10-26 09:32 UTC Update from 2020arXiv200508662C. Gaia EDR3 position.
1 Bajer, Mariusz 2019-07-10 20:07 UTC Gaia DR2 position.

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