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Comet P/2009 R2 (PIGOTT-LINEAR-KOWALSKI)

15 Sep 2009, 14:24 UTC
Comet P/2009 R2 (PIGOTT-LINEAR-KOWALSKI)
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IAUC no. 9072, issued on 2009, Sept. 11, announces the recovery of P/2003 A1 (LINEAR). This comet has been initially picked-up as a diffuse object (coma about 15-20 arcsec elongated in PA 280 deg) by R. A. Kowalski with the Catalina 0.68-m Schmidt telescope on 2009, Sept. 10.4.Follow-up after its posting in the NEO-CP webpage was secured by several observers (P. Birtwhistle, G. Hug and the undersigneds), who noticed the presence of cometary features (in general, the existence of a small coma, about 10 arcsec in diameter with little or no central condensation, was reported).D. Chestnov linked the new designated P/2009 R2 to P/2003 A1 (LINEAR). Probably due to a strong perturbation by Jupiter at the time of its aphelion (Sept. 2006), P/2009 R2 was found significantly off track (nearly 17 deg northeast of P/2003 A1 original ephemerids position).IAUC No. 9073, published shortly after, informed us that B. G. Marsden successfully linked 14 astrometric data points collected in 1783 on comet Pigott (1783 W1) with the positions available so far on P/2009 R2 & P/2003 A1, establishing then that comet Pigott (1783 W1) had the same identity of P/2009 R2 & P/2003 A1. Thus this object has been named as ...

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