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Name
  NADA-V99  
AAVSO UID
000-BNG-749 (No observations)  
Constellation
Vulpecula Sequence
J2000.0
20 35 26.75 +27 27 26.7  (308.86146 +27.45742) Search nearby
B1950.0 20 33 20.06 +27 17 01.4
Galactic coord. 69.321 -7.815
Other names

(Internal only)
2MASS J20352675+2727274 CMC15 J203526.7+272726 GSC2.3 N330008062
Gaia DR3 1856817136347193216 SDSS J203526.75+272726.6 TIC 367169650
URAT1 588-524395    
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Variability type
EA/HW
Spectral type sdB
Mag. range
17.04 - 18.63 r
Discoverer Adam Nowak
Epoch
08 Apr 2019 (HJD 2458581.989) Ephemeris
Outburst --
Period 0.5719424 d  (13.72662 h)
Rise/eclipse dur. 5.3%  (0.728 h)
Remarks
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1 Nasonov, Dmitry Min II = 17.12 r
2 Nowak, Adam BP-G= 0.08.
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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 1
Main source		 2022yCat.1355....0G
3 Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing,
Products, and Archive		 2019PASP..131a8003M
4 Chambers, K. C.; et al., 2016,The Pan-STARRS1 Surveys 2016arXiv161205560C
5 Girven, J.; et al., 2011, DA white dwarfs in Sloan Digital Sky Survey Data
Release 7 and a search for infrared excess emission		 2011MNRAS.417.1210G
External Links
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Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 35 26.75 +27 27 26.7 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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4 NADA-V99 zoomed phase plot Nasonov, Dmitry 2024-10-28 15:59 UTC Light curve from ZTF DR22, Pan-STARRS1 and Gaia DR3 photometry data folded with the best orbital period, zoomed at maximum
3 NADA-V99 updated phase plot Nasonov, Dmitry 2024-10-28 15:49 UTC Light curve from ZTF DR22, Pan-STARRS1 and Gaia DR3 photometry data folded with the best orbital period
2 Eclipse images (ZTF) Nowak, Adam 2019-09-19 00:48 UTC Images from ZTF showing eclipses.
1 Phase plot Nowak, Adam 2019-09-06 20:27 UTC Phase plot with ZTF and Pan-STARRS1 data. Lower chart presents reflection effect.
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Revision History
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2 Nasonov, Dmitry 2024-10-28 15:43 UTC Type, range, period, epoch and eclipse duration from ZTF, Pan-STARRS1 and Gaia DR3 data. Spectral type from 2023A&A...674A..26C and 2011MNRAS.417.1210G.
1 Nowak, Adam 2019-09-20 03:05 UTC Gaia DR2 position.

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