[AZ-Observing] Re: Comet 17/PHolmes - Swan Band filter

Perhaps the filter is reducing the moonlight and city light pollution to
allow better contrast. I know, the moon spectrum is a reflection of the
sun, but any attenuation of the moonlight might be allowing the better
contrast.

Filters have been marketed to allow you to observe in the city,
"blocking out the light pollution".

Rick R.
SAC


-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Brian Skiff
Sent: Friday, October 26, 2007 11:59 AM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Comet 17/PHolmes - Swan Band filter skiff1

>>  Odd that visually the OIII and Swan Band filter increased contrast
>>  given its apparent dust content.  What are your thought on this,
Brian?


     Don't believe anything you see!


\Brian
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