V2139 Sgr observation needed For general info see: http://www.kusastro.kyoto-u.ac.jp/vsnet/gcvs/SGRV2139.html Most recently reported (up to 10) observations: YYYYMMDD(UT) mag observer 19970407.769 100 (Minoru Yamamoto) 19970904.488 89 (Minoru Yamamoto)