Hello Bernhard and all,
I confirmed the brightness increases of C/2010 G2 by using RAS Observatory.
The coma appeared very condensed and starlike.
I agree that it have experienced outburst.
COD H06
OBS H.Sato
MEA H.Sato
TEL 0.25-m f/3.4 reflector + CCD
NET USNO-A2.0
CK10G020 KC2010 09 01.12218 15 17 14.28 +19 43 33.0 H06
CK10G020 KC2010 09 01.13034 15 17 14.33 +19 43 31.8 H06
CK10G020 KC2010 09 01.13413 15 17 14.36 +19 43 31.2 16.3 T H06
regards.
Hidetaka Sato
Tokyo, Japan