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Latest Details
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Name
  V1321 Cyg  
AAVSO UID
000-BDP-207 (297 observations)  
Constellation
Cygnus Sequence
J2000.0
20 23 28.75 +41 31 59.0  (305.86979 +41.53305) Search nearby
B1950.0 20 21 42.94 +41 22 14.0
Proper motion
RA: 8.7 +/- 2.1 mas/yDec: 16.8 +/- 2.6 mas/ySource: UCAC4
Galactic coord. 79.332 +2.402
Other names

(Internal only)
ASASSN-V J202328.76+413158.9 ZTF J202328.76+413159.4  
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Variability type
EA
Spectral type --
Mag. range
12.688 (0.51) r
Discoverer --
Epoch
21 Sep 1999 (HJD 2451442.671) Ephemeris
Outburst --
Period 0.72818 d  (17.476 h)
Rise/eclipse dur. 30%:  (5.2 h)
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 2006IBVS.5674....1O Min II = 13.6:R1.
2 GCVS Team P = 0.7281802d?
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References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 ZTF Catalog of Periodic Variable Stars (online data) 2020arXiv200508662C
2 Chen, X.; et al., 2020, The Zwicky Transient Facility Catalog of Periodic
Variable Stars
2020arXiv200508662C
3 Bob Nelson's O-C files, 2016 --
4 S.A.Otero, G.J.Hoogeveen, P.Wils, IBVS N5674, 2006. 2006IBVS.5674....1O
5 G.Romano, Padova Publ N156, 1969. --
External Links
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Location    Go   
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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 = 11.79H = 11.58K = 11.54J - K = 0.25
AllWISE W1 = 11.60W2 = 12.18W1 - W2 = -0.58
APASS-DR9 B = 13.41V = 12.75g' = 13.05r' = 12.72i' = 12.60B - V = 0.66
SDSS-DR12 u = 15.30g = 14.74r = 14.95i = 15.29z = 13.65u - g = 0.56r - i = -0.34
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 23 28.75 +41 31 59.0 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2021-10-25 22:35 UTC Update from 2020arXiv200508662C. Amplitude from ZTF light curve. Gaia EDR3 position.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:54 UTC Update from [2006IBVS.5674....1O].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.