NNo       GCVS          J2000.0        Type       Max       Min I        Min II      Epoch(JD24..) Year        Period        M-m/D    Spectrum       References  Other design. 
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180018 |RZ    Cas *|024855.5+693803 |EA/SD     |  6.18   |   7.72     |   6.26     |V |43200.3063  |     |     1.195247       |17  *|A2.8V            |00018 05056|
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______________The positional information: ___________________________
  NNo     GCVS            J2000.0         p.m.(as/yr) Epoch     Ident.
----------------------------------------------------------------------
180018 |RZ    Cas |024855.51 +693803.4 |+0.003 +0.037|2000.0  | |Hip
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_______________Cross-identifications:_______________
RZ    Cas     = AN   1906.0077                |     
RZ    Cas     = BD   +69 0179                 |     
RZ    Cas     = BS   00815                    |     
RZ    Cas     = GSC  4317.01793               |     
RZ    Cas     = HD   017138                   |     
RZ    Cas     = Hip  013133                   |     
RZ    Cas     = SAO  012445                   |     
____________________________________________________

      Reference to a chart or photograph:
05056. J.Mattei, E.Mayer, M.Baldwin, Sky and Tel 60, N4, 285, 1980.

      Reference to a study of the star:
00018. S.Gaposchkin, HA 115, N15, 1950.

__________________________________________________________________
      Remark:         
    Min II 6.26. The light curve shape var; d var
    (0.000P <=  d <= 0.009P). P var, variations are irregular.
    Mean elements based on visual and photographic
    observations: Min I = 2416886.8806 + 1.195253065d*E
    (JD2416800 - 26700) [08820], Min I = 2432820.7853 +
    1.1952517d*E (JD2426700 - 34000) [00938]. From
    photoelectric observations: Min I = 2432115.5827 +
    1.1952472d*E (JD2429870 - 30400); Min I =
    2432085.7011 + 1.195259d*E (JD2432000 - 32460);
    Min I = 2434349.5130 + 1.1952525d*E (JD2432450 - 34420);
    Min I = 2434703.3035 + 1.195238d*E (JD2434420 - 34705);
    Min I = 2435934.4087 + 1.1952499d*E (JD2434705 - 35950);
    Min I = 2438829.2818 + 1.195243d*E (JD2436800 - 39100);
    Min I = 2440182.3089 + 1.195259d*E (JD2439380 - 40200);
    Min I = 2441333.3257 + 1.195244d*E (JD2440500 - 41350);
    Min I = 2442327.7798 + 1.1952521d*E (JD2441550 - 42350);
    since JD2442850 - see Table.

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