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Name
  TIC 17453934  
AAVSO UID
000-BPZ-524 (No observations)  
Constellation
Cygnus Sequence
J2000.0
20 33 25.54 +41 33 26.6  (308.35642 +41.55739) Search nearby
B1950.0 20 31 38.27 +41 23 07.7
Galactic coord. 80.439 +0.906
Other names

(Internal only)
2MASS J20332556+4133269 ALS 15104 GSC 03161-01067
GSC2.3 N31A000563 Gaia DR3 2067928110513529216 NGC 6910 RLP 23
PPMX J203325.5+413326 RLP 26 Schulte 25 A
UCAC4 658-089949 USNO-A2.0 1275-13994806 USNO-B1.0 1315-0394419
WISEA J203325.57+413326.9 [MM53] Cyg OB2 25 [MT91] 531
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Variability type
EA
Spectral type O8.5V
Mag. range
11.58 V (0.05)TESS
Discoverer Natalia Virnina
Epoch
10 Aug 2022 (HJD 2459801.6442) Ephemeris
Outburst --
Period 27.283196 d
Rise/eclipse dur. 1.4%  (0.3820 d)
Remarks
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1 Virnina, Natalia Eccentric system. Min II amplitude 0.01m (TESS) at phase 0.532, duration 3.1%. Uncertain identification. Visual binary. A= 12.07V; B= 12.68V; sep. 1.4". Combined magnitude and amplitude given.
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References
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1 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 1
Main source		 2022yCat.1355....0G
2 Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS) 2014SPIE.9143E..20R
3 Massey, P.; Thompson, A. B., 1991, Massive Stars in CYG OB2 1991AJ....101.1408M
External Links
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Images
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Supporting Documents
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1 Phase plot based on TESS data Virnina, Natalia 2024-10-22 11:02 UTC Phase plot of TIC 17453934, based on TESS data collected from BJD 2459419.99 till BJD 2460394.77; zoomed in minima.
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Revision History
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1 Virnina, Natalia 2024-10-22 18:56 UTC Initial submission.
Mean magnitude and spectral type from 1991AJ....101.1408M.

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