V2905 Sgr rapid fading 共生星ですが、もしかすると(これまで報告されたことのない)食に入りつつ あるのかも知れません。 YYYYMMDD(UT) mag observer 20000507.900 117 (B. Monard) 20000525.830 117 (B. Monard) 20000530.248 11.66V (S. O'Connor) 20000624.203 11.79V (S. O'Connor) 20000707.730 118 (B. Monard) 20000724.750 118 (B. Monard) 20000825.730 122 (B. Monard) 20000917.719 124 (B. Monard) 20000927.719 128 (B. Monard)