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Name
  V2504 Cyg  
AAVSO UID
000-BDC-102 (10881 observations)  
Constellation
Cygnus Sequence
J2000.0
19 37 24.08 +46 23 52.1  (294.35033 +46.39781) Search nearby
B1950.0 19 35 54.27 +46 17 02.3
Proper motion
RA: -5.551 +/- 0.990 mas/yDec: -8.301 +/- 0.628 mas/ySource: Gaia DR1
Galactic coord. 79.229 +12.001
Other names

(Internal only)
2MASS J19372409+4623520 AAVSO 1934+46D AAVSO 6811 V04
ASASSN-V J193723.99+462350.7 Cl* NGC 6811 Lindoff 39 Cl* NGC 6811 VLR V4
GSC 03556-00716 KIC 9655422 KID 9655422
NGC 6811 L39 TYC 3556-716-1 UCAC3 273-158269
USNO-B1.0 1363-0321119 VSX J193724.1+462352  
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Variability type
DSCT
Spectral type A4
Mag. range
11.52 (0.07) V
Discoverer Van Cauteren, et al.
Epoch
--
Outburst --
Period 0.19501 d  (4.680 h)
Rise/eclipse dur. --
Remarks
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1 Admin, VSX Frequencies detected in the interval [4.0, 50.2] c/d.
2 Jansen, R Multiple periods. Principal period 0.19499 d. Other suspected periods: 0.117565, 0.1636, 0.1545, 0.12808 d and additional frequencies.
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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,
2013, IBVS 6052
2013IBVS.6052....1K
3 K. Uytterhoeven et al., 2011, arXiv:1107.0335v1 [astro-ph.SR] 2011arXiv1107.0335U
4 Van Cauteren, P., Lampers, P., Robertson, C.W., and Strigachev, A. 2005,
Comm in Asteroseismology, 146, 21
2005CoAst.146...21V
5 P.van Cauteren, et al., Comm. in Asteroseismology, 146, 2005. 2005CoAst.146...21V
6 Kepler data (MAST) --
External Links
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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 = 10.81H = 10.68K = 10.63J - K = 0.18
AllWISE W1 = 10.58W2 = 10.61W3 = 10.65W1 - W2 = -0.03
APASS-DR9 B = 11.86V = 11.51g' = 11.62r' = 11.46i' = 11.50B - V = 0.34
Images
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Supporting Documents
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1 KEPLER multiple periods Jansen, R 2010-09-26 17:48 UTC KEPLER data from JD 2454964 to 2454998 were examined
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Revision History
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5 Otero, Sebastian Alberto 2020-05-23 02:49 UTC Range from the GCVS (November 2019 version).
4 Admin, VSX 2013-04-16 00:51 UTC Update from [2013IBVS.6052....1K].
3 Admin, VSX 2011-07-07 02:55 UTC Update from [2011arXiv1107.0335U].
2 Jansen, R 2010-09-26 17:48 UTC Update var type and periods from KEPLER data.
Synonyms added.
  1 Admin, VSX 2006-07-13 09:22 UTC Initial database population.