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

I thought about that, but why didn't I get a similar response with  
the UHC?  There is something passing through the narrow-band OIII  
enhancing contrast.

-FRANK


On Oct 26, 2007, at 12:40 PM, Rotramel, Rick (AZ77) wrote:

> 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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