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» Support Center » Knowledgebase » NexStar GT and GTL FAQs » Tips for terrestrial viewing
 Tips for terrestrial viewing
Answer Terrestrial viewing is best done with a magnification of 15x to 60x. If you exceed 60x magnification, a view can be blurry because the of earth’s atmosphere. Heat waves and high-altitude winds move air around and cause differing temperatures of air to mix.  This makes the air act like a weak lens that interferes with the light from a distant object, especially on a hot day. This "bad seeing" can drastically distort your image. Early mornings are best for high power viewing because the air temperature is more constant.

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Article ID: 1714
Created On: Feb 21 2005 07:31 AM

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