Comet C/2011 L4 (PANSTARRS), discovered by Pan-STARRS 1 telescope
on Haleakala, Maui, on the night of 2011, June 5-6, will reach
perihelion in March 2013 when it will be located only 0.30 AU from the
Sun and might become a bright naked eye object ( with a peak magnitude
of anywhere from +1 to -1). At its brightest C/2011 L4 will appear only
15° from the Sun.
The comet is now at 3.2 AU from the Sun (m2 ~ 14.0). While visually C/2011 L4 is at m1 ~ 11.
We performed some follow-up measurements of comet C/2011 L4 remotely from the Siding Spring-Faulkes Telescope South on 2012, September 10.4 through a 2.0-m f/10.0 Ritchey-Chretien + CCD. Below you can see our follow-up image (click on it for a bigger version):
The comet is now at 3.2 AU from the Sun (m2 ~ 14.0). While visually C/2011 L4 is at m1 ~ 11.
We performed some follow-up measurements of comet C/2011 L4 remotely from the Siding Spring-Faulkes Telescope South on 2012, September 10.4 through a 2.0-m f/10.0 Ritchey-Chretien + CCD. Below you can see our follow-up image (click on it for a bigger version):
Below you can see the lightcurve of comet C/2011 L4 (PANSTARRS) collected by Seiichi Yoshida on his comet webpage:
(Credit: Seiichi Yoshida)
As a comparison, below you can see our image of the comet taken on June
7.4, 2011 just one day after his discovery by Pan-STARRS Survey. The
comet was then at 8.2 AU from the Sun (m2 ~ 19.5).
While below there is our image taken on May 18.6, 2012 with the comet at 4.6 AU from the Sun (m2 ~ 15.6).
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