|• Observation data: C/2002 C1(Ikeya-Zhang) and
At last the sky became transparent. This would be the last view of Ikeya-Zhang in the evening sky. In a 20cm telescope there was a 4.5-magnitude star nearby and the comet was estimated to be about one magnitude brighter. Since its discovery, Ikeya-Zhang has always been visible for about half an hour in the northwest at twilight.
It has been rather difficult visually.
C/2002 E2 was visually estimated to be at magnitude 11.7 at 2 am April 5. It was very diffuse and fuzzy with a 1.5'-diameter coma. It has faded a great deal.
Let's observe C/2002 C1 in the morning sky at dawn.
C/2002 C1 2002 U.T. R.A(2000) Decl. m1 Apr. 4.42507 0 51 32.68 +41 24 55.4 3.5 372 C/2002 E2 Apr. 4.72153 19 17 59.22 +26 35 54.1 11.7 372
C/2002 C1( Ikeya-Zhang )
19:26 April 4, 2002 with a 2-minute exposure on TP6415
60cm reflector at Geisei Observatory
Copyright (C) 2002 Tsutomu Seki.