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Name
  30 Cyg  
AAVSO UID
000-BCK-971 (1 observation)  
Constellation
Cygnus Sequence
J2000.0
20 13 18.05 +46 48 56.4  (303.32521 +46.81567) Search nearby
B1950.0 20 11 43.72 +46 39 48.5
Proper motion
RA: 13.83 +/- 0.33 mas/yDec: 3.00 +/- 0.33 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 82.708 +6.865
Other names

(Internal only)
2RXS J201318.2+464852 ADS 13554 ADS 13554 D
BD+46 2881 CCDM J20135+4646D CSV 102988
GSC 03559-02796 HD 192514 HIP 99639
HR 7730 IRAS 20117+4639 NSV 12926
PPM 59516 Renson 53640 SAO 49332
TIC 186136107 TYC 3559-2796-1 WDS J20136+4644D
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Variability type
ACV:
Spectral type A4IIIn
Mag. range
4.83 V (0.001)TESS
Discoverer --
Epoch
20 Jul 2019 (HJD 2458685.28) Ephemeris
Outburst --
Period 2.9384 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Classified as Ap in 1971AJ.....76..896S.
2 GCVS Team ADS 13554D (337".1, 323deg; A 3.7; B 13.0, 36".8, 332deg; C 6.98, 107".1, 174deg). Var [T.Herczeg, H.Schmidt, ZsAp 55, 161, 1962 = Bonn Mitt No.46., R.A.Botsula, Astron Tsirk No.551, 1970.]; [Delta]V=0.09 [R.A.Botsula, Astron Tsirk No.551, 1970.].
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References
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1 Fetherolf, T.; et al., 2023, Variability Catalog of Stars Observed during
the TESS Prime Mission
2023ApJS..268....4F
2 Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS) 2014SPIE.9143E..20R
3 Perryman, M. A. C.; et al., 1997, The HIPPARCOS and TYCHO catalogues 1997HIP...C......0E
4 Gray, R. O.; Garrison, R. F., 1989, The Early F-Type Stars: Refined
Classification, Confrontation with Stroemgren Photometry, and the Effects
of Rotation
1989ApJS...70..623G
5 Smith, M. A., 1971, The incidence of metallicism among mid A-type stars 1971AJ.....76..896S
6 F.B.Wood, AJ 57, 30, 1952. 1952AJ.....57...30W
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 4.21H = 4.44K = 4.41J - K = -0.20
AllWISE W1 = 4.38W2 = 4.08W3 = 4.41W4 = 4.38W1 - W2 = 0.30W3 - W4 = 0.03
Images
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Supporting Documents
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1 Phase plot Otero, Sebastian Alberto 2024-02-15 21:28 UTC Phase plot with TESS SPOC data.
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Revision History
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2 Otero, Sebastian Alberto 2024-02-15 21:25 UTC Type, period, epoch and range from TESS data. Spectral type from 1989ApJS...70..623G. Mean magnitude derived from GCPD and Hipparcos data. Gaia DR3 position.
1 Admin, VSX 2005-12-18 01:33 UTC Preserved original object data.