31![Optical Tube Optical tube is the main component of an astronomical telescope as it contains the lens and mirror that collects light from celestial objects and the eyepiece lens that magnifies the image. The factors that Optical Tube Optical tube is the main component of an astronomical telescope as it contains the lens and mirror that collects light from celestial objects and the eyepiece lens that magnifies the image. The factors that](https://www.pdfsearch.io/img/2a7b2d08ea6089f6436fa4a6af6e8f97.jpg) | Add to Reading ListSource URL: www.vixenoptics.comLanguage: English - Date: 2009-09-24 13:35:39
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32![P R E T OR I A C E N T R E A S S A - J U N E[removed]PAGE 1 NEWSLETTER JUNE 2 014 P R E T OR I A C E N T R E A S S A - J U N E[removed]PAGE 1 NEWSLETTER JUNE 2 014](https://www.pdfsearch.io/img/c0d35a09b01c73c0ad6bb7273d9b085c.jpg) | Add to Reading ListSource URL: www.pretoria-astronomy.co.zaLanguage: English - Date: 2014-06-18 10:42:50
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33![Aerial View of Cerro Paranal Aerial View of Cerro Paranal](https://www.pdfsearch.io/img/69b8baff7d3005e0534e215ff75580f3.jpg) | Add to Reading ListSource URL: www.syracuse-astro.orgLanguage: English - Date: 2012-08-11 11:04:22
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34![Innovative Astronomy Gear Products Innovative Astronomy Gear Products](https://www.pdfsearch.io/img/f8072f5699c481363c97ada7defa051f.jpg) | Add to Reading ListSource URL: media.skyandtelescope.comLanguage: English - Date: 2014-01-02 11:44:17
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35![Fast and robust pointing and tracking using a second generation star tracker John Leif Jørgensena and Andrew Picklesb Fast and robust pointing and tracking using a second generation star tracker John Leif Jørgensena and Andrew Picklesb](https://www.pdfsearch.io/img/4e6c52d97fbce2f23a456867d42745a5.jpg) | Add to Reading ListSource URL: www.ifa.hawaii.eduLanguage: English - Date: 1998-04-03 19:18:52
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36![](https://www.pdfsearch.io/img/7267bafc9a5faa2f3ad7989ab034f6ce.jpg) | Add to Reading ListSource URL: docs.jach.hawaii.eduLanguage: English - Date: 2003-12-03 21:15:29
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37![](https://www.pdfsearch.io/img/0a41289608d2239333394e98090b15ae.jpg) | Add to Reading ListSource URL: media.skyandtelescope.comLanguage: English - Date: 2010-10-29 10:42:53
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