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Astronomical filter
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21	Volume Title ASP Conference Series, Vol. Volume Number Author c Copyright Year Astronomical Society of the Pacific Add to Reading List Source URL: www.bbso.njit.edu Language: English - Date: 2013-01-11 16:43:14 Telescopes Optical devices Electromagnetic spectrum Infrared Filter Telecentric lens OSIRIS Fabry–Pérot interferometer Polarimetry Electromagnetic radiation Optics Observational astronomy
22	ASTRONOMICAL INFORMATION SHEET No. 83 Prepared by HM Nautical Almanac Office Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX Council for the Central Laboratory of the Research Councils Add to Reading List Source URL: astro.ukho.gov.uk Language: English - Date: 2010-01-18 05:55:59 Plasma physics Space plasmas Physics Astrophysics Solar eclipse Sun Filter Corona Astronomy Eclipses Light sources
23	ASTRONOMICAL INSTRUMENTS PRICE LIST Effective Date: April 15, 2014 Contents ASTRONOMICAL INSTRUMENTS PRICE LIST ........................................................................................................... Add to Reading List Source URL: www.optecinc.com Language: English - Date: 2014-05-19 16:05:26 Optics T-mount Dovetail C mount S mount Photographic filter Photometer Coupling Telescopic sight Lens mounts Technology Photography
24	Webfooted Astronomer The Seattle Astronomical Society March 2005 Special points of interest: • Add to Reading List Source URL: archive.seattleastro.org Language: English - Date: 2013-05-24 12:10:51 Telescopes Deep-sky object Eyepiece Astrophotography Solar telescope Star party Astronomical filter Amateur astronomy Observational astronomy Astronomy Space
25	The Use of Astronomical Filters One of the puzzles of visual astronomy that many beginning amateur astronomers get caught up in is the use of filters. Which ones to purchase, and which ones are useful for what types of observing are the most Add to Reading List Source URL: sas-sky.org Language: English - Date: 2012-04-06 13:03:58 Optics Astronomical filter Filter Wratten number Neutral density filter Doubly ionized oxygen Photographic filter H-alpha Electronic filter Optical filters Observational astronomy Technology

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