According to IAUC 8319 Bill Bradfield discovered
his 18th comet on March 23 and 24 with his 25-cm
reflector from a country location near his home in
Yankalilla (South Australia). Because of its small
elongation, deep in evening twilight, it could only
be confirmed on April 8/9.
The latest orbital elements (MPEC 2004-M49) show it
passed perihelion on April 17.090, only 0.168 AU
from the sun. Around that time it made a spectacular
passage through the SOHO C3-field.
It became observable again for earthbound observers
in the Northern Hemisphere on April 23, as a magn. 3
object, low in the morning sky.
The orbital elements indicate this comet moves in an
elliptical orbit with a period of about 3800 years,
which explains why it survived perihelion, despite
being of rather low intrinsic brightness.
A preliminary lightcurve and photometric parameters
are given below.
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