I love looking at Planetaries with the Grim, 10 power for inch with that is 320x but many are better at higher mag. --- chuck.hards@gmail.com wrote: From: "Chuck Hards" <chuck.hards@gmail.com> To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Subject: Re: [Utah-astronomy] Utah-Astronomy Digest, Vol 71, Issue 17 Date: Wed, 7 Jan 2009 18:07:34 -0700 That's a good rule-of-thumb. A couple of exceptions are those tiny, blue planetaries and very distant globulars. But 10X/inch is good for 90% of the faint fuzzies. You can bump it up a bit with smaller apertures, to help increase contrast. On Wed, Jan 7, 2009 at 2:03 PM, <zaurak@digis.net> wrote:
I have always felt 10 power per inch is ideal magnification for most deepsky objects.
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