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Name
  AISV-ID J279.979-5.613  
AAVSO UID
000-BQD-644 (No observations)  
Constellation
Scutum Sequence
J2000.0
18 39 55.00 -05 36 45.2  (279.97917 -5.61256) Search nearby
B1950.0 18 37 14.77 -05 39 33.1
Galactic coord. 26.626 -0.005
Other names

(Internal only)
2MASS J18395500-0536452 EIC 8847 GSC2.3 S9NE077769
Gaia DR3 4256481197912129536 IRAS 18372-0539 TIC 175995098
URAT1 422-290537 USNO-B1.0 0843-0406407 ZTF J183955.00-053645.3
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Variability type
E-DO:+L
Spectral type M
Mag. range
18.3 - 20.2 r
Discoverer Shuming Wang, Yuhao Yang, Qintao Wang
Epoch
15 Jul 2018 (HJD 2458315) Ephemeris
Outburst --
Period 645 d
Rise/eclipse dur. 55%  (355 d)
Remarks
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1 Wang, Shuming J-K= 3.22.
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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 Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing,
Products, and Archive
2019PASP..131a8003M
3 Tonry, J. L.; et al., 2018, ATLAS: A High-cadence All-sky Survey System 2018PASP..130f4505T
External Links
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Location    Go   
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Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 39 55.00 -05 36 45.2 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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2 Phase plot Wang, Shuming 2025-04-24 11:31 UTC Phase plot with ZTF and ATLAS data.
1 Light curve Wang, Shuming 2025-04-24 11:31 UTC Light curve with ZTF and ATLAS data.
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Revision History
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1 Wang, Shuming 2025-04-24 14:47 UTC Gaia DR3 position. Spectral type from 2023A&A...674A..26C.