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Reports from Geisei Observatory <June 12, 2004>


• C/2002 T7 (LINEAR) and C/2001 Q4 (NEAT)
    Yesterday I developed the film I had exposed using the 60cm reflector at the observatory.
    C/2002 T7 (LINEAR) was clearly seen in the 20cm refractor at 60x. The coma was from 3' to 4' in diameter with m1 being 9.5 magnitude. In the photograph the tail is about 30' long at PA 130°. It must have looked great in the Southern Hemisphere.
    C/2001 Q4 (NEAT) was 6.4 magnitude and a tail (Type I) extended almost in due north (PA 95°) for one degree and a separate wide dust tail (possibly Type II) at PA 140° was confirmed. I am thinking of photographing it in color on a clear day. The comet moved north and is easier to observe now.
C/2002 T7(LINEAR)
2004UT         RA (2000.0?  Decl.         m1
June 11.46979  09 45 38.72  -09 16 54.2   9.5      372
June 11.47292  09 45 39.23  -09 16 51.7   9.5      372

C/2001 Q4(NEAT)
June 11.48774  09 59 40.98  +50 02 07.3   6.4      372
June 11.54486  09 59 46.93  +50 03 24.0   6.5      372
                                                T.Seki


C/2002 T7(LINEAR)
1-minute exposure from 20:30 J.S.T., June 11
60cm f/3.5 reflector
TM400 film


C/2001 Q4(NEAT)
5-minute exposure from 20:34 J.S.T., June 11
60cm f/3.5 reflector
TM400 film



Copyright (C) 2004 Tsutomu Seki.