■ [extragalactic nova] Nova in M31 2009-10b : update
We update the light curve of the Nova NM31-2009 10b. We confirmed the existence of the plateau phase in the light curve. In generally, the radiations from the continuum in the plateau phase would be related to contributions from the free-free emissions. We also confirmed the very slightly brightening in R-band, which is naturally thought to be caused by the strengthening the emissions lines of the H_alpha. We will continue the observations of this novae.