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Name
  IS Cas  
AAVSO UID
000-BDJ-703 (6348 observations)  
Constellation
Cassiopeia Sequence
J2000.0
23 28 28.60 +60 33 56.0  (352.11917 +60.56556) Search nearby
B1950.0 23 26 11.60 +60 17 23.9
Galactic coord. 112.909 -0.682
Other names

(Internal only)
AN 469.1937 AN 509.1934 SVS 817
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Variability type
EA/SD:
Spectral type A2
Mag. range
12.1 - 13.1 B
Discoverer --
Epoch
30 Aug 1937 (HJD 2428776.263) Ephemeris
Outburst --
Period 1.8415124 d
Rise/eclipse dur. 14%  (6.187 h)
Remarks
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1 2017ARep...61...80S Min II= 11.48 V.
2 GCVS Team Min II 12.2. P var. Min I = 2428776.262 + 1.8415172d*E (JD2417400 - 29500) [N.F.Florja, Tr. Gos. Astron. Inst. Sternberg 16, 187, 1949.]; since JD2428000 - see Table.
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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 Bob Nelson's O-C files, 2016 --
3 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
4 N.F.Florja, Tr. Gos. Astron. Inst. Sternberg 16, 187, 1949. 1949TrSht..16..187F
5 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
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Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
3 Otero, Sebastian Alberto 2020-05-23 03:21 UTC Period, epoch, eclipse 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.