Reports from Geisei Observatory <March 23, 2001>

• C/1999 T1(McNaught-Hartley)

C/1999 T1(McNaught-Hartley)
2001 UT      RA(2000)     Decl.       m1
Mar.21.80833 18 22 05.30 +55 47 28.0 11.1 372
    21.82326 18 22 06.97 +55 47 59.9      372

This is the only comet visible to the naked eye at the moment. It is clearly seen in the 20cm refractor at 40x. The diameter of the coma is 2.5' but no tail is visible. In the photograph taken by the 60cm telescope, the coma seems to be a little fuzzy on the western side (on the right in the photograph). It has come so far north. The error margin in the above data is ±1". As these measurements haven't been reported to IAU yet, you are reading the latest data about this comet.

Comet McNagught-Hartley
4.20 am on March 22
2-minute exposure on TM400 film
60cm reflector at Geisei Observatory