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Latest Details
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Name
  KY Cas  
AAVSO UID
000-BDJ-715 (5 observations)  
Constellation
Cassiopeia Sequence
J2000.0
23 04 53.65 +53 15 47.4  (346.22354 +53.26317) Search nearby
B1950.0 23 02 41.48 +52 59 34.8
Proper motion
RA: 14.1 +/- 6.0 mas/yDec: 7.6 +/- 5.7 mas/ySource: UCAC4
Galactic coord. 107.279 -6.340
Other names

(Internal only)
2MASS J23045365+5315474 ASASSN-V J230453.61+531547.2 SON 4625
USNO-A2.0 1425-14558485 USNO-B1.0 1432-0516797 ZTF J230453.63+531547.4
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Variability type
EA
Spectral type --
Mag. range
16.18 - 20.2 g
Discoverer --
Epoch
28 Dec 2018 (HJD 2458480.828) Ephemeris
Outburst --
Period 2.32147 d
Rise/eclipse dur. 17%  (9.5 h)
Remarks
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1 York, Paul Min II = 16.25 g
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References
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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 Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing,
Products, and Archive		 2019PASP..131a8003M
4 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
5 H.Huth, VSS 4, N2, 1957. --
6 MVS N311, 1957. --
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 = 15.24H = 14.73K = 14.49J - K = 0.75
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 23 04 53.65 +53 15 47.4 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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1 Phase Plot for KY Cas York, Paul 2021-05-31 05:33 UTC Phase Plot for KY Cas
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Revision History
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4 York, Paul 2021-05-31 04:56 UTC Type, period, epoch, eclipse duration and range from ZTF data. Gaia EDR3 position.
3 Otero, Sebastian Alberto 2020-05-24 17:32 UTC Type from the GCVS (November 2019 version).
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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