light-pollution filters

Randy Muller (muller@No-Spam)
Thu, 27 Apr 1999 15:30:40 -0700

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M. Wagner wrote:
> Do you find the Ultrablock helps galaxies in town?

No.

I have not found it to help galaxies, whether in town or at dark sites.
However, I have never tried it on the emission nebulae in M33 or M31 or the
Large Magellanic Cloud.

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light-pollution filters

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