Friday, November 5, 2010

Comet C/2010 V1 (Ikeya-Murakami)

The new bright morning comet announced yesterday has been officially designated C/2010 V1 (Ikeya-Murakami). The mpec 2010-V46 with the first and preliminary orbit has been issued and it shows the perihelion already on Oct. 18, 2010, at about 1.7 AU.

Today we performed again some follow-up of this bright object to obtain more astrometric measures that are important to compute a reliable orbit. Below you can see the image (stack of 10X20seconds exposures) obtained on 2010 Nov. 05.5, remotely from the GRAS Observatory (near Mayhill, NM) through a 0.25-m, f/3.4 reflector + CCD. It's still evident the strong central condensation and the elongation toward PA 295.

According to COCD webpage this is the 7th visual comet discovery for Ikeya (co-discoverer also of the famous 1965's sungrazer Comet Ikeya-Seki) and the 2nd for Murakami.

by Ernesto Guido & Giovanni Sostero

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