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Old 03-11-2014, 06:45 PM
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The Mekon (John Briggs)
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Join Date: Jul 2007
Location: Bowral NSW
Posts: 828
Quote:
Originally Posted by Robh View Post
This is not my experience. You must have really good skies in your area! I regularly check beta Muscae as a gauge of seeing. The two stars are separated by about 0.9". Only on rare occasions do I see a clean split. More magnification simply makes the pair look like a bigger blob.

Regards, Rob
Thank you Rob,

You have reminded me that I could regularly split beta Musca with my Astro-Physics 130EDT always before midnight and the scope outside for less than 1/2 hour. The 18" has yet to split this double as I don't spend enough time outside for it to cool/settle down enough!
Plus with either scope I rarely use more than 230x. Most commonly with the AP it was 7mm nagler yielding 147x Now I use either a 9, 13, or 17.3 in the 18" yielding 228x, 158x or 118x.
I sold the AP in September. The 18" is great for faint diffuse objects, but cannot match the AP on even doubles as yet.
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