GU Sgr in 2MASS Another 2MASS-bright R CrB-type star. GSC6844.3878 182415.57 -241526.1 (2000.0) 10.34 6 USNO0600.17295205 182415.585 -241527.11 (2000.0) 11.3 11.5 * 2MASS 182415.576 -241525.92 (2000.0) 0.000 0.000 0.000 IRAS18211-2417 182111.4 -241703 (1950.0) F12=1.00 F25=0.69 F60=0.48L F100=39.80L VAR=41 LRS=-1 possibly IIIa: variable star with more evolved O-rich c.s. shell or VIb: variable star with relatively hot dust close to the star and relatively cold dust at large distance may be O-rich or VII: variable star with more evolved C-rich circumstellar shell 182415.0 -241523 (2000.0) IRAS18211-2417 0.972 0.710 0.481L 39.740L 41% 182415.0 -241523 (2000.0) SSC18211-2417 0.972 0.710 0.481L 39.740L 182415.5 -241522 (2000.0) CS3999 12 - - SGRGU 182415.5 -241525 (2000.0) 1082 0.77 TYC2-6844.3878.1 (10.90 0.08) (11.80 0.10) 182415.5 -241526 (2000.0) SGRGU * RCB 11.33 15.0 B - - - C(R0) R1/SGR2