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Latest Details
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Name
  WY Cas  
AAVSO UID
000-BCS-169 (3518 observations)  
Constellation
Cassiopeia Sequence
J2000.0
23 58 01.35 +56 29 13.5  (359.50563 +56.48708) Search nearby
B1950.0 23 55 29.01 +56 12 31.5
Proper motion
RA: 6.9 +/- 2.6 mas/yDec: -3.0 +/- 2.8 mas/ySource: UCAC4
Galactic coord. 115.570 -5.619
Other names

(Internal only)
AAVSO 2352+55 AN 11.1918 AN 595.1936
ASASSN-V J235801.33+562913.4 IOMC 4009000072 IRC +60431
RAFGL 3187 SVS 2  
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Variability type
M
Spectral type S6,5pe
Mag. range
7.5 - 16.00 V
Discoverer Sergei Kostinsky (1918)
Epoch
07 Sep 2015 (HJD 2457273.0) Ephemeris
Outburst --
Period 481.5 d
Rise/eclipse dur. 39%  (188 d)
Remarks
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1 GCVS Team In the region of the cluster NGC 7789. The spectrum of the G type star is seen in minimum light [G.H.Herbig, KVB N40, 164, 1965.]. The existence of a physical companion is possible. S6/6-e.
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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 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
3 V.S.Pikel'ner, Perem. Zvezdy 17, N4, 453, 1970. 1970PZ.....17..453P
4 Hartwig, E.; Muller, G., 1921, Benennung von neu entdeckten veraenderlichen
Sternen
1921AN....212..353.
5 T. Karlsson, Maxima of Mira stars --
6 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
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 = 3.48H = 2.59K = 1.86J - K = 1.62
AllWISE W3 = -0.79W4 = -1.74W3 - W4 = 0.95
APASS-DR9 B = 10.87
Images
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Supporting Documents
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Stellar Association Membership
 NGC 7789 Open Cluster 2012A&A...548A..97Z
Revision History
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4 Fernig, Leo 2023-03-29 20:25 UTC Discoverer updated from 1921AN....212..353. page 374.
3 Otero, Sebastian Alberto 2020-05-24 17:12 UTC Period, epoch, rise duration and range 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.