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Reports from Geisei Observatory <November 7, 2006>


C/2006 S5 (Hill) and P/2006 S6 (Hill)

    Weather has become more stable in November, which generally has more clear days than any other months. They say that it is always clear on November 3rd and 4th every year. As predicted, we had beautiful clear days this year, too. It had been relatively warm this autumn, but today's strong seasonal cold wind has ushered in typical cool autumn weather.

    The following are the positions of faint comets which were observed in October. Comets fainter than 18th magnitude require 30- to 50- minute exposures with the 60cm f/3.5 reflector. I believe that Geisei is the only observatory that has been using "primitive" film-based photographic observation in the whole wide world. 
    CK06S050   2006 10 15.58576 00 41 26.69 +18 12 45.4          18.5 T      372
    CK06S050   2006 10 18.57708 00 39 53.86 +18 02 12.9          18.1 T      372
    CK06S050   2006 10 23.56076 00 37 23.57 +17 43 41.6          18.0 T      372
    CK06S050   2006 10 23.58646 00 37 22.63 +17 43 37.7                      372

    PK06S060   2006 10 15.64306 02 58 07.67 +28 08 22.5          17.5 T      372
    PK06S060   2006 10 18.63125 02 56 12.33 +28 26 35.5                      372
    PK06S060   2006 10 20.63646 02 54 47.83 +28 37 59.0          17.8 T      372
    PK06S060   2006 10 23.61458 02 52 33.32 +28 53 37.4                      372
    PK06S060   2006 10 25.59722 02 50 58.59 +29 03 08.2          17.9 T      372
    C/2006 M4 (SWAN) is reported to be maintaining its brightness. I will observe this comet tonight.

Copyright (C) 2006 Tsutomu Seki.