light-pollution filters

M. Wagner (resource@No-Spam-intl.com)
Thu, 27 Apr 1999 14:01:39 -0700 (PDT)

On Thu, 27 Apr 1999, Randy Muller wrote:

>
> I opted for the Ultrablock to cope with my mag 4.5 backyard sky, but have
> since realized it's useful for a lot more than just this. It does best on
> emmission nebulae, especially planetaries.
>

That's interesting Randy. I have a 1.25" Orion Ultrablock and a 2"
Lumicon UHC (as well as a 2" Lumicon Skyglow). Do you find the Ultrablock
helps galaxies in town? I've never tried that.

Mark Wagner
mgw@No-Spam-intl.com


The Astronomy Connection -- Mailing List Archives