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Reports from Geisei Observatory <May 16, 2005>

C/2005 E2 (McNaught) and C/2005 G1 (LINEAR)

    The following are the results of recent observations at Geisei. With continuing fine weather, I am making good progress, though faint comets are difficult to photograph unless seeing is good. The great galaxy of M31 now crosses the field during search. If I found a new comet now, could I handle the situation well? I felt a little uneasy. The comet seeker is not equipped with a digital setting circle. There is no way to know azimuth or altitude, either. All I can do is determine the comet's position on a star chart by following the direction of the finderscope and make a drawing of the eyepiece field. It is rather a primitive method, but I am not quite sure if I still have that skill of 30 years ago. If I can first estimate the object's position with an accuracy to 1 degree, I can determine the position accurate to 1 arc-minute from the drawing.
    I found a digital circle in a drawer of the desk. It is hard to believe this little device can display an object's position. It is certainly revolutionary compared with the situation 30 years ago.
    CK05E020   2005 05 12.75313 20 34 23.10 -36 18 47.3          16.3 T      372
    CK05E020   2005 05 12.76354 20 34 23.45 -36 18 47.8                      372

    CK05G010   2005 05 12.61736 17 32 07.68 +56 10 24.0          18.5 T      372
    CK05G010   2005 05 15.70104 17 27 01.12 +56 45 03.2          18.6 T      372
Copyright (C) 2005 Tsutomu Seki.