Hatena::Groupkanatatmp

KANATA ObsLog

2010-04-21

[] S5 0716+714 : Update the data

f:id:kanataobslog:20100421212823p:image

We update the data of S5 0716+714. The degree of polarization was still high.

[] PG 1553+113? : Rising phase

f:id:kanataobslog:20100421211726p:image

PG 1553+113? is classified as High-frequency peaked BL Lac object. The object has brightened since JD~2455214. The variability amplitude of magnitude was about 0.6 mag for 100 days.

[] 3C 454.3 : Update the data

f:id:kanataobslog:20100421185820p:image

We update the data of 3C 454.3. The object became faint, about V~15.3.

[] OJ 287 : Rapidly fading

f:id:kanataobslog:20100421184433p:image

Althogh, the object had been bright state since our monitoring season in 2009, the object has recently entered the rapidly fading. The object was about V=15.2, and the amplitude of this fading was more than 0.4 mag. We continue to observe this object.