Query= B Cas 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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189202 |B     Cas *|002521.5  +640827. :|SNI:      | -4.5  : |< 19.       |            |V |            |1572 |                    |     |                 |N0484      |           |             |        | |Lit.     |SNI:      |B     Cas |
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_______________Cross-identifications:_______________
B     Cas     = BD   +63 0039                 |a    
B     Cas     = BS   00092                    |     
B     Cas     = IRAS 00219+6351               |     
B     Cas     = X    00224+638                |     
B     Cas     = XX   CEP X-1                  |     
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Reference to a study of the star:

N0484 Schaefer, B.E., 1996, ApJ, 459, No. 2, 438 {1996ApJ...459..438S}

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Remark: Tycho Brahe's supernova. Maximum probably around November 15, 1572.

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