Query= alf UMi GCVS Query forms
  NNo      GCVS          J2000.0            Type      Max        Min I         Min II       Epoch        Year      Period          M-m/D     Spectrum      References  Other desig. p.m.(as/yr)   Epoch     Ident.     New type    GCVS
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849001 |alf   UMi *|023149.07 +891550.8 |DCEPS     |  1.86   |   2.13     |            |V |31495.813   |     |     3.9696         |50   |F7Ib-F8Ib        |10096 BD   |           |+0.044 -0.012|2000.0  | |Hip      |          |alf   UMi |
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_______________Cross-identifications:_______________
alf   UMi     = ADS  01477                    |A    
alf   UMi     = BAY  UMi alf                  |     
alf   UMi     = BD   +88 0008                 |     
alf   UMi     = BS   00424                    |     
alf   UMi     = CRL  0273                     |     
alf   UMi     = FLM  UMi 001                  |     
alf   UMi     = GSC  4628.00237               |     
alf   UMi     = HD   008890                   |     
alf   UMi     = Hip  011767                   |     
alf   UMi     = IRAS 01490+8901               |     
alf   UMi     = SAO  000308                   |     
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      Reference to a chart or photograph:
BD Bonner Durchmusterung, F.W.A. Argelander, Bonner Sternverzeichniss, 1 bis 4 Sektion, Astronomische Beobachtungen auf der Sternwarte de Kgl. Rhein/ Friedrich-Wilhelms-Unviersiaet zu Bonn (CDS Cat. I/122).

Reference to a study of the star:
10096. A.Arellano Ferro, ApJ 274, 755, 1983.

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Remark: VB A (B 8.20m, F3V, 18.3", 218deg); SB1 (Porb = 10969d, E = 0.655 [09904]). P var. There is a non-linear term in the elements: +1.9877d*10**(-7)*E**2. The amplitude of light and radial velocity variation decreased in 1982. A(V) = 0.04m (1984).

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