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Comet C/2007 W1 (BOATTINI)

IAUC 8899: comet C/2007 W1 (BOATTINI)

A. Boattini discoverd a 18th magnitude comet, found on CCD images taken with the Mt. Lemmon Survey's 1.5-m reflector, noting that four co-added 30-s exposures show a slightly asymmetric condensation of size about 8" x 6" with the longer axis in p.a. 290-300 deg.  Boattini adds that ten co-added 90-s CCD exposures taken by C. Snodgrass with the European Southern Observatory's 3.58-m New Technology Telescope (+ EMMI) on Nov. 23.34-23.36 UT show a coma of size about 6" x 7" and a very faint tail in p.a. 293 deg extending about 9" from the comet's center.  Following posting on the Minor Planet Center's NEOCP webpage, E. Guido and G. Sostero (Castellammare di Stabia, Italy) report that CCD images obtained remotely with a 0.25-m f/3.4 reflector near Mayhill, NM, U.S.A., on Nov. 21.5 shows (via 30 co-added exposures) a coma with diameter about 12" that is elongated toward the southeast.

The available astrometry, the following preliminary parabolic orbital elements, and an ephemeris appear on MPEC 2007-W63.