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Details for Revision 4
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Name
  V2709 Cyg  
AAVSO UID
000-BDC-317 (3851 observations)  
Constellation
Cygnus Sequence
J2000.0
20 34 14.50 +50 48 06.0  (308.56042 +50.80167) Search nearby
B1950.0 20 32 44.81 +50 37 43.8
Galactic coord. 87.978 +6.283
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
2MASS J20341450+5048061 AAVSO_DES 2031+50 Cyg1
KPD 2032+5037 KPD2032+50 NSV 25181
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Variability type
NL+ZZ:
Spectral type Be
Mag. range
14.7 (0.27) R
Discoverer --
Epoch
--
Outburst --
Period --
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto V from the AAVSO database ranges from 14.5 and 15.1. V-mag. derived from UCAC3 is 14.9.
2 2010IBVS.5956....1Z Nightly brightness variations and flickering superposed on possible white dwarf pulsations with periods of 28.32 and 24.58 minutes and amplitudes of 0.03 mag.
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References
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1 Samus, N. N.; Kazarovets, E. V.; Durlevich, O. V.; et al., 2017, General
Catalogue of Variable Stars: Version GCVS 5.1 (November 2019)		 2017ARep...61...80S
2 E.V. Kazarovets, N.N. Samus, O.V. Durlevich, N.N. Kireeva, E.N. Pastukhova,
2015, IBVS 6155		 2015IBVS.6155....1K
3 E.V. Kazarovets, N.N. Samus, O.V. Durlevich, N.N. Kireeva, E.N. Pastukhova,
2015, IBVS 6155		 2015IBVS.6155....1K
4 A.M. Zubareva, S.V. Antipin, 2010, IBVS 5956 2010IBVS.5956....1Z
5 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
6 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
7 R.A.Downes, ApJ 307, No.1, 170, 1986. 1986ApJ...307..170D
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Supporting Documents
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Revision History
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5 Otero, Sebastian Alberto 2020-05-24 18:42 UTC Period from the GCVS (November 2019 version).
4 Admin, VSX 2016-01-07 04:20 UTC Update from [2015IBVS.6155....1K].
3 Otero, Sebastian Alberto 2011-12-10 03:36 UTC Primary record creation. Range corrected from IBVS 5956. UCAC3 position.
2 Admin, VSX 2010-12-16 03:47 UTC Update from [2010IBVS.5956....1Z].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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