Discovery
On November 18th a Japanese amateur astronomer found a moderately bright comet with 25x150 binoculars. It was moving so rapidly that further observations were difficult.
Then, at dawn on November 25th, a New Zealand amateur astronomer, Albert Jones, saw what appeared to be a comet in the field of the variable star T Aps when observing with his 3-inch reflector. Analysis of
the positions determined the two observations to be of the same comet, and a more precise orbit was calculated.
Observations:
The first chance I had to observe this comet was on Dec 4th 2000. From the driveway (light polluted by next doors
flood light) I was able to pick up the comet easily in 10x50 binoculars between alpha and beta Sagittarii. The comet was very bright (around mag 6).
I then grabbed my 80mm rich field refractor and enjoyed the pleasing view :)
Image:
C/2000 W1 (Utsunomiya-Jones) image is a seven-image composite taken on the night of
November 29th by Ian Griffin at Auckland Observatory in New Zealand. The field is about 10 minutes across.