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Details for Revision 2
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Name
  ZTF J193858.19+182024.7  
AAVSO UID
--  
Constellation
Sagitta Sequence
J2000.0
19 38 58.19 +18 20 24.7  (294.74246 +18.34019) Search nearby
B1950.0 19 36 44.56 +18 13 29.6
Galactic coord. 54.607 -1.746
Other names

(Internal only)
ASASSN-V J193858.26+182025.0 Gaia DR3 1824347630291425280  
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Variability type
EA
Spectral type --
Mag. range
14.87 - 15.11 g
Discoverer Zwicky Transient Facility (ZTF)
Epoch
16 Sep 2018 (HJD 2458377.81) Ephemeris
Outburst --
Period 3.73325 d
Rise/eclipse dur. 12%  (10.8 h)
Remarks
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1 Otero, Sebastian Alberto Visual binary. A= 14.3 G, B= 14.7 G. The companion Gaia DR3 1824347630324920064 is classified as variable in 2022yCat.1358....0G, but this is spurious variability caused by the close companion. ZTF magnitudes in the table are for the blend of the two stars.
2 Otero, Sebastian Alberto Min II= 15.03 g.
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References
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1 Creevey, O. L.; et al., 2023, Gaia Data Release 3: Astrophysical parameters
inference system (Apsis) I -- methods and content overview
2023A&A...674A..26C
2 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 4
Variability
2022yCat.1358....0G
3 Chen, X.; et al., 2020, The Zwicky Transient Facility Catalog of Periodic
Variable Stars
2020arXiv200508662C
4 ZTF Catalog of Periodic Variable Stars (online data) 2020arXiv200508662C
5 Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing,
Products, and Archive
2019PASP..131a8003M
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2025-12-24 00:02 UTC Spectral type from 2023A&A...674A..26C.
2 Otero, Sebastian Alberto 2025-12-23 23:56 UTC Period, epoch, eclipse duration and range from ZTF data.
1 Admin, VSX 2020-09-26 01:20 UTC Preserved original object data.