Three Types of Telescopes - What are the Advantages
Refractors, Newtonian reflectors and Catadioptricsare the three main types of telescopes. All thesedifferent types have the same purpose, but eachtelescope design does it differently. Collectinglight and bringing it to point of focus so it can bemagnified and examined with an eyepiece is theirgoal. Of the different types of telescopes the refractoris the telescope most people think of when theythink of astronomy. This type of astronomy telescopeis easy to use and reliable due to the simplicityof design. It requires little or no maintenance. Itsgreat for looking at the different types of lunar,planetary, and binary stars. Newtonians are a type of telescope, which is alsoknown as catoptrics. This type is different fromthe other telescopes because it has the lowestper inch of aperture compared to refractors andCatadioptrics, because lenses are more expensiveto produce than mirrors, especially in mediumto large apertures. Newtonians deliver very brightimages and are low in optical aberrations. Catadoptric telescopes are the most popular typeof instrument, with the most modern design,marketed throughout the world in 3 1/2 and largerapertures. Its very good for looking at differentplanetary, lunar, and binary stars. If you like to take photos with your telescope this type ofinstrument is excellent for deep sky observingor astrophotography with fast films or CCD's. Copyright © JJ PERSISTENT PUBLISHING, INC. PERMISSIONS TO REPUBLISH: This article may be republished in its entirety free of charge, electronically or in print, provided it appears with the included copyright and author's resource box with live website links. Jeremy Hier is the Business Manager and Webmaster ofBest Telescope GuidesJeremy Hier is a freelance writer and regular contributer He likes to offer his advice and tips to consumers looking to purchase meade telescopes and celestron telescopes
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Stressed out execs seek relief in YogaEconomic Times, India - 6 hours agoCorporates too are becoming proactive and invite yoga consultants to hold workshops and classes in offices. “Such activities help build a good working ... |
Yoga For YouHonolulu Star-Bulletin, HI - 5 hours agoRay Madigan and Shelley Choy are certified Iyengar yoga teachers and co-direct the Manoa Yoga Center. Address questions to them at Manoa Marketplace, ... |
Yoga, gym to de-stress Indian CEOsKhabrein.info, India - 23 minutes agoChennai, Oct. 12: With the world on the edge of recession, Indian chief executive officers (CEOs) have taken to yoga to beat stress and restlessness, ... |
All yoga is HinduismWatertownDailyTimes.com, United States - 9 hours agoRegarding the article "Massena yoga program is stalled" (Oct. 2), it continually amazes many Hindus how uneducated (to put in mildly) many are concerning ... |
'Gentle' yoga can benefit elderly or infirmPittsburgh Post Gazette, PA - 12 hours agoBy Dave Zuchowski She put her belief into practice Thursday when she led her first class in "gentle yoga" at California's Center in the Woods. ... |
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