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Reversed from left to right, as
viewed with a Star Diagonal
Inverted image, as viewed with
the eyepiece directly in telescope
A telescope is an instrument that collects and focuses light. The nature of the optical design determines how the light is focused.
Some telescopes, known as refractors, use lenses. Other telescopes, known as reflectors, use mirrors. The NexStar 60, 80 and
102 telescopes are refractor telescopes that use an objective lens to collect its light. The NexStar 114 and 130 are reflecting
telescopes with a primary and secondary mirror to gather and focus light.
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Once you have found an object in the telescope, turn the focusing knob until the image is sharp. To focus on an object that is
nearer than your current target, turn the focusing knob toward the eyepiece (i.e., so that the focusing tube moves away from the
front of the telescope). For more distant objects, turn the focusing knob in the opposite direction. To achieve a truly sharp focus,
never look through glass windows or across objects that produce heat waves, such as asphalt parking lots.
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The image orientation of any telescope changes depending on how the eyepiece is inserted into the telescope. When observing
through the NexStar 60, 802.0.94 0 dee61ag th
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