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Name
  AISV J210356.57+491422.1  
AAVSO UID
000-BCN-146 (No observations)  
Constellation
Cygnus Sequence
J2000.0
21 03 56.57 +49 14 22.1  (315.98571 +49.23947) Search nearby
B1950.0 21 02 16.72 +49 02 23.8
Galactic coord. 89.771 +1.595
Other names

(Internal only)
2MASS J21035656+4914222 AG+49 1749 ALS 11700
BD+48 3277 Gaia DR3 2168634304655084928 HD 200804
HIP 103971 LS III +49 15 PPM 60905
SAO 50413 TD1 27648 TIC 290069794
TYC 3596-403-1 UCAC4 697-084353 URAT1 697-383848
USNO-A2.0 1350-13371173 USNO-B1.0 1392-0379083 XPM 278-0593345
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Variability type
EA+HB
Spectral type B3IV
Mag. range
8.15 V (0.054)TESS
Discoverer Shuming Wang
Epoch
08 Aug 2022 (HJD 2459800.422) Ephemeris
Outburst --
Period 5.2294 d
Rise/eclipse dur. 3%  (4 h)
Remarks
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1 Wang, Shuming HB amplitude 0.017 TESS.
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References
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1 Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS) 2014SPIE.9143E..20R
2 Fehrenbach, C.; et al., 1962, La mesure des vitesses radiales au prisme
objectif. XIII. 6eme liste de vitesses radiales determinees au prisme
objectif a vision directe.
1962JO.....45..349F
External Links
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Images
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Supporting Documents
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4 Phase plot(P=5.2294) Wang, Shuming 2025-03-05 01:04 UTC Phase plot with TESS SPOC data from sector 55, 56, 75, 76, 82, 83.
3 Zoomed light curve(sector 82, 83) Wang, Shuming 2025-03-04 14:13 UTC Light curve displays TESS SPOC data from sector 82, 83.
2 Zoomed light curve(sector 55, 56) Wang, Shuming 2025-03-04 14:10 UTC Light curve displays TESS SPOC data from sector 55, 56.
1 Zoomed light curve(sector 75, 76) Wang, Shuming 2025-03-04 14:10 UTC Light curve displays TESS SPOC data from sector 75, 76.
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Revision History
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1 Wang, Shuming 2025-03-18 20:04 UTC Gaia DR3 position. Spectral type from 1962JO.....45..349F. Mean magnitude from GCPD data.