COMET C/2009 E1 (ITAGAKI)
H. Yamaoka, Kyushu University, reports the discovery of a comet with
coma diameter about 70" on CCD images taken by Koichi Itagaki (Yamagata,
Japan) with a 21-cm f/3 reflector (diameter of field 2.2 deg), using
software by H. Kaneda to detect moving objects automatically. The
original times for the two discovery images (as well as the first four
follow-up images taken at the same location with a 30-cm f/7.8 reflector)
were later corrected and relayed by S. Nakano (Sumoto, Japan), who notes that
the comet is diffuse with weak condensation and a hint of tail toward the
south, measuring total mag 11.9 from an image taken on Mar. 14.424 UT.
Available CCD astrometry, including that sent to the Central Bureau after
posting on the Minor Planet Center's NEOCP webpage:
板垣彗星
写真1 3/17 10コマ彗星核で加算処理
写真2 3/20 1コマ撮り
いずれもSMC-PETAX A*400mmF2.8(F2.8), IDAS LPS-P2 Filter, ORION StarShoot Pro Deep Space Color Imager, VIXEN SPHINX mount、部分トリミング