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Eric Hahl Eric Hahl is online now
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Join Date: Mar 2005
Location: Aumsville OR
Posts: 3,654
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I assume you are using a non-motorzied alt-az mount. Yes, big magnification really shows Earths rotation quickly. Tracking mounts compensate for this keeping the viewed object centered.

There are lots of cool objects to view with the 4" scope. The pleiades star cluster is brilliant in a small scope with a wide field of view. The Orion nebula starts to show some shape. The double cluster, etc.
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Eric Hahl
85 911 to 73RS backdate, a.k.a. "Gretchen" (SOLD)
2015 981 Cayman S (Sold)
23 Outback Wilderness & 23 BMW R1250GS
Old 03-02-2022, 01:28 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #794 (permalink)