[AZ-Observing] Re: Comet Holmes tonight
- From: Frank Kraljic <fjkraljic@xxxxxxx>
- To: Arizona Observing Observing <az-observing@xxxxxxxxxxxxx>
- Date: Wed, 24 Oct 2007 23:58:26 -0700
>>
Correction on my notes: I meant to say the "plume" fans a half to a
2/3rds IN from the coma. So less than halfway out from the nucleus.
And on that point, I will Paul's note the brightening does seem to
envelop the nucleus, and the "plume" is denser at its center.
-FRANK
>> The comet is golden in appearance, structurally no different than a
>> planetary nebula, similar to say NGC 6826 or perhaps the Eskimo. At
>> 400 and 560x with a 10-inch, the coma's soft perimeter is a shell
>> subtlety brighter than the interior, which has some faint mottling
>> north of the nucleus. An outer halo-esque haze is vaguely apparent
>> around the coma, but under the full moon and city glow, is marginally
>> visible with do discernible structure. A "plume" of material is
>> south and adjacent to the coma, half to 2/3rds the way to the
>> perimeter shell. Seeing degrades at 560x, however I get the
>> impression of a faint arc just north by a few arc seconds of the
>> nucleus.
>>
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