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  TU Cas  
000-BBB-663 (26520 observations)  
Cassiopeia Sequence
00 26 19.40 +51 16 49.0  (6.58083 +51.28028) Search nearby
B1950.0 00 23 36.66 +51 00 12.7
Galactic coord. 118.930 -11.396
Other names

(Internal only)
AAVSO 0020+50 AN 17.1911 BD+50 72
HD 2207 HIP 2085 HV 3307
SAO 21398    
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Variability type
Spectral type F3II-F5II
Mag. range
6.88 - 8.18 V
Discoverer --
22 Jan 1973 (HJD 2441704.839) Ephemeris
Outburst --
Period 2.139298 d
Rise/eclipse dur. 31%  (15.92 h)
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1 GCVS Team Fundamental mode period P0 is given in the Table; the corresponding amplitude is 0.69m. First-overtone period P1 = 1.51830d; the corresponding mean amplitude decreased from 0.4m to 0.25m during 67 years [S.W.Hodson, R.F.Stellingwerf, A.N.Cox, ApJ 229, 642, 1979.]. P1/P0 = 0.71. M - m var (0.17P <= M - m <= 0.35P).
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1 E.Illes, L.Szabados, IAU Coll N29, 165, 1976. 1976mpvs.conf..165I
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Revision History
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2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.