Subject: APO refractor apeture
From: (Chris1011)
Date: 9/23/2004 7:20 PM Eastern Daylight Time
Message-id:


When we were in the Keys 2 years ago, 350x was ideal on Jupiter with my 10"
Mak-Cass, but seeing detail on Gannymede was impossible until we reached
powers
of 600x to 900x. At 900x, subtle detail stood out during moments of excellent
seeing on Gannymede, but most surface detail on Jupiter itself was much less
pleasing.

There is no one power that works for every object. That's why Uncle Al makes
a
gazillion eyepieces, and you all ought to buy one of each (two if y'all have
a
binoviewer - er, a Baader bino if'n ya want t' see the sharpest detail).

Rolando
aka Uncarollo
****************************
I was using powers from 850 to 1100x to see details on Gannymede with a 15"
Obsession - OMI Torus mirror last year!

But only nites of super seeing would allow such high powers...

Chas P.