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Latest Details
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Name
  BLVS J185943.72+424044.6  
AAVSO UID
000-BPY-091 (No observations)  
Constellation
Lyra Sequence
J2000.0
18 59 43.72 +42 40 44.6  (284.93217 +42.67906) Search nearby
B1950.0 18 58 09.51 +42 36 29.7
Galactic coord. 72.885 +16.585
Other names

(Internal only)
2MASS J18594371+4240446 BLVS 15 GSC2.3 N2DZ047986
URAT1 664-284657 USNO-A2.0 1275-10612744 USNO-B1.0 1326-0395785
XPM 265-0468497    
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Variability type
BY+UV
Spectral type M
Mag. range
15.2 - 16.50 r
Discoverer Bowen Lan
Epoch
24 Jul 2021 (HJD 2459419.826) Ephemeris
Outburst --
Period 0.97385 d  (23.372 h)
Rise/eclipse dur. --
Remarks
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1 Lan, Bowen Flares recorded by ZTF, amplitude 1.2 r. BY amplitude 0.19 r.
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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
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 59 43.72 +42 40 44.6 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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3 Phase Plot Lan, Bowen 2024-08-10 15:17 UTC Phase Plot for BLVS J185943.72+424044.6 data from ZTF r and ZTF g are used here.
2 Light Curve Lan, Bowen 2024-08-10 15:15 UTC Light curve shows flare for BLVS J185943.72+424044.6 using ZTF data.
1 Image comparison Lan, Bowen 2024-07-18 06:45 UTC ZTF data images showing the variable in quiescent and flaring states.
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
1 Lan, Bowen 2024-08-12 20:50 UTC Gaia DR3 position. Spectral type from 2023A&A...674A..26C.

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