C/1998 P1 (WILLIAMS)
Date (UT) n MM Mag Ref Aper Type f x dia DC taildg tailpa Observer
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981216.20 - S 10.1 HS 20.3 T 10 102 2.0 5 - - Timo Karhula
Comments: Altitude 15 degrees. Site: Virsbo, Sweden.
Date (UT) n MM Mag Ref Aper Type f x dia DC taildg tailpa Observer
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990416.93 - S [13.0 HS 44.5 L 4.5 220 - - --- --- Johan Warell
Comments: Comet not seen. Conservative magnitude estimate as I did not have
access to faint comparison chart. Altitude 23 deg. ZLM +6.7. Site: Sandvreten
Observatory, Sweden.