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Latest Details
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Name
  Barlad V20  
AAVSO UID
000-BPS-029 (39 observations)  
Constellation
Cygnus Sequence
J2000.0
20 13 22.40 +38 35 17.4  (303.34333 +38.58817) Search nearby
B1950.0 20 11 33.21 +38 26 09.8
Galactic coord. 75.807 +2.348
Other names

(Internal only)
2MASS J20132241+3835174 AG+38 1987 ALS 10961
GSC 03151-01349 HD 228390 LS II +38 16
TIC 312363778 TYC 3151-1349-1  
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Variability type
EB
Spectral type B3V
Mag. range
10.11 V (0.01)clear
Discoverer Ciprian Vintdevara, Alexandru Dumitriu - Barlad Astronomical Observatory
Epoch
05 Aug 2021 (HJD 2459432.291) Ephemeris
Outburst --
Period 0.527454 d  (12.6589 h)
Rise/eclipse dur. --
Remarks
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References
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1 Huang, C. X.; et al., 2020, Photometry of 10 Million Stars from the First
Two Years of TESS Full Frame Images: Part I		 2020RNAAS...4..204H
2 Kharadze, E. K.; Bartaya, R. A., 1961, Spectra of stars near NGC 6604, NGC
6913, and Trumpler 1.		 1961AbaOB..26...35K
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 20 13 22.40 +38 35 17.4 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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1 Phase Plot Vintdevara, Ciprian 2023-10-20 15:40 UTC Phase Plot with TESS and Barlad data
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Revision History
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1 Vintdevara, Ciprian 2023-10-31 01:37 UTC Position and mean magnitude derived from Gaia DR3. Spectral type from 1961AbaOB..26...35K

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