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Name
  BLVS J183955.01-053645.2  
AAVSO UID
000-BQD-561 (No observations)  
Constellation
Scutum Sequence
J2000.0
18 39 55.01 -05 36 45.2  (279.97921 -5.61256) Search nearby
B1950.0 18 37 14.78 -05 39 33.1
Galactic coord. 26.626 -0.005
Other names

(Internal only)
2MASS J18395500-0536452 BLVS 87 EIC 8847
GSC2.3 S9NE077769 Gaia DR3 4256481197912129536 IRAS 18372-0539
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 Bowen Lan
Epoch
15 Jul 2018 (HJD 2458315) Ephemeris
Outburst --
Period 645 d
Rise/eclipse dur. 55%  (355 d)
Remarks
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1 Lan, Bowen 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
External Links
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Images
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Supporting Documents
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2 Phase Plot Lan, Bowen 2025-04-15 00:09 UTC Phase Plot for BLVS J183955.01-053645.2 data from ZTF r and ZTF i are used here.
1 Light Curve Lan, Bowen 2025-03-19 11:46 UTC Light Curve for BLVS J183955.01-053645.2 with ZTF data.
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Revision History
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1 Lan, Bowen 2025-04-15 03:21 UTC Gaia DR3 position. Spectral type from 2023A&A...674A..26C.

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