Chironites I have collected 6 images of the comet and created a partial light curve of the rotation, and possible coma detection. Images collected December 20th, 1995. At Kenyon Astrophysical Observatory (5280 ft. el.) Sierra's No.CA. Seeing was very good, but very cold (24 deg. F). ST-7 CCD full resolution (768x512) on an 8" f4.5 telescope. Integration time was 10.0 min, with dark subtract and flat fielding. Chiron moved less than 1 pixel width (2.2" of arc) on each image. Tracking error was far less than 1 pixel, with 5" of arc star images, so the comet "nucleus" remained on 1 pixel for each image. MAGNITUDE CURVE time(UT) mag Image 1 12:11 15.60 Image 2 12:30 15.71 Image 3 12:50 15.80 Image 4 13:07 15.86 Image 5 13:20 15.75 Image 6 13:32 15.64 Image 7 (sum of all 6) 15.79 (60 min integration) Magnitudes were determined with CCDOPS software and a 31 pixel sample window. Megastar's star database was used for the star magnitude reference. The mag's may be a bit low due to the precision of the stars chosen, however the dip in brightness can clearly be observed. COMA Another image of the comet and possible coma has been assembled as well from the addition of all 6 images refrenced to the comet. The coma appeared 11" x 9" in size when compaired to the average background brightness. Brightening south and west of the central pixel was evident as well. MONTAGE A montage of the 7 images listed above is attached. Another image with the zoomed region of the comet and coma has also been assembled and forwarded to each of you. If anyone would like the complete image set, I will forward them to PDSSSBN or let me know if you need your own copies in a different format. NOTE: THE IMAGES ARE IN xx.JPG format ... I tried xx.TIF, but they were too big. Thanks, Dave Kenyon KAO