Query= mu Sgr 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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729012 |mu.   Sgr *|181345.81 -210331.8 |EA+ACYG   |  3.80   |   3.88     |            |V |44035.      |     |   180.55           |11   |B8eqIa+B1.5V     |09921 BD   |           |+0.002 -0.001|2000.0  | |Hip      |          |mu.   Sgr |
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_______________Cross-identifications:_______________
mu.   Sgr     = ADS  11169                    |A    
mu.   Sgr     = AN   1938.0017                |     
mu.   Sgr     = BAY  Sgr mu.                  |     
mu.   Sgr     = BD   -21 4908                 |     
mu.   Sgr     = BS   06812                    |     
mu.   Sgr     = CPD  -21 06771                |     
mu.   Sgr     = FLM  Sgr 013                  |     
mu.   Sgr     = GSC  6276.03093               |     
mu.   Sgr     = HD   166937                   |     
mu.   Sgr     = Hip  089341                   |     
mu.   Sgr     = MWC  0598                     |     
mu.   Sgr     = SAO  186497                   |     
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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:
09921. R.S.Polidan, M.J.Plavec, AJ 89, N11, 1721, 1984.

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Remark: VB A (B 10.48m, 16.9", 285deg; C 13.0m, 25.2", 119deg; D 9.69m, 48.5", 312deg; E 9.25m, 50.0", 115deg). SB2 (e = 0.4). The variability type is EA/GS + ACYG. According to [09922] there are also quasiperiodical light variations with the amplitudes 0.08m - 0.15m and cycles from 16d to 40d.

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