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219P/LINEAR - (= P/2002 LZ11 = P/2009 H1)

Photometric data obtained by use of FOCAS-II software

                                   10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB   COD

OBJECT        DATE       TIME        +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

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                                                                     AFRHO         LOG

COMET         UTC                   DELTA    r    BOX "   MAG   RSR    CM    +/-  AFRHO  OBS

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IAUC 8240: COMET P/2002 LZ_11

An apparently asteroidal object with not-unusual motion recorded by the LINEAR project (discovery observation from MPS 57856 below), and linked over 2002 June 5-13 and designated by the Minor Planet Center as 2002 LZ_11 (but indicated on MPEC 2002-L64 as having a cometary orbit), was accidentally reobserved by LINEAR on numerous occasions in July 2002 and during July-Nov. 2003 (and by LONEOS on 2003 Oct. 16).  E. Christensen, University of Arizona, recognized 2002 LZ_11 as having cometary appearance yesterday in CCD images (mag 16.6-16.9) obtained accidentally by the Catalina Sky Survey (0.68-m f/1.8 Schmidt) on 2003 Oct. 29.  Further images yesterday by Christensen apparently confirmed the cometary appearance, as did images obtained today at the request of the Minor Planet Center by J. Young (0.61-m reflector at Table Mountain Observatory), who described the object as having a round coma, 7" across, with a featureless fanshaped tail about 15"-20" long in p.a. 190-280 degrees.

Apparition of 2010:

This comet was recovered by Ernesto Guido, Giovanni Sostero (†), Paul Camilleri, and Enrico Prosperi (Remanzacco Observatory, Italy) using a remote-controlled telescope of the GRAS network (Mayhill station, New Mexico, USA) on 2009 April 17.45. They described the comet as an "extremely compact coma, about 12 arcsec in diameter, and a short tail nearly 25 arcsec long toward West." The comet was 4 arc minutes east-northeast of the predicted position. Comet was assigned as P/2009 H1 and later 219P/LINEAR.

Comet 2019P/LINEAR - Gary W. Kronk’s cometography