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Space Telescope

International Conference on Advanced Technology Optical Telescopes: March 11-13, 1982, Tucson, Arizona (Proceedings of SPIE-the International Society

Pleasures Of The Telescope

Star Testing Astronomical Telescopes: A Manual for Optical Evaluation and Adjustment

Astronomy, Without A Telescope: A Guide To The Constellations And Introduction To The Study Of The Heavens With The Unassisted Sight (1904)

Seeing And Believing: How The Telescope Opened Our Eyes And Minds To The Heavens

ETX-90AT and ETX-125AT Astro Telescopes include an internal optical-flat mirror to reflect light to the telescope's 90 astronomical observing position. In this position, the telescope's image is upright, but reversed left-to-right. This is of little consequence for astronomical viewing, but for ...

Designed with the very latest in optical glass types, Meade four-element Series 4000 Super Plossls are excellent general-purpose eyepieces. For observing hairline lunar and planetary detail, splitting close double stars, or for resolving faint nebulosity in deep space, Super Plossls optimize the ...

A telescope worthy of its name. it's called the Discoverer and for good reason. With a smaller, more focused library programmed in and ready to go, not even the sky is the limit when you peer into this newest addition to the Bushnell family. Real Voice Output TM uses an actual human voice to take ...