comparison
 D : 18h45m18.6s -21d00'05"(2000.0) 6.34 B-V=0.42 TYC2-6292.160.1
 G : 18h43m32.7s -20d55'07"(2000.0) 7.36 B-V=1.13 TYC2-6292.268.1
 B : 18h51m06.3s -20d18'00"(2000.0) 7.55 B-V=0.09 TYC2-6289.3220.1
 H : 18h44m38.1s -20d58'15"(2000.0) 7.36 B-V=1.58 TYC2-6292.202.1
 C : 18h48m50.5s -20d09'12"(2000.0) 8.21 B-V=0.11 TYC2-6289.433.1

other V.S.
 BB Sgr   DCEP 6.55-7.30(V) E0=36053.535+6.63699xE
 V350 Sgr DCEP 7.08-7.83(V) E0=35317.227+5.15424xE

remarks
 B : V4088 Sgr E 7.49-7.87(V) period=unknown
 H : IRAS18416-2101
 G : IRAS18405-2058

Oobservation report of 2007