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Amateur astronomers
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261	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
262	1 W. F. Denning - The Doyen of Amateur Astronomers. Add to Reading List Source URL: hyperion.cc.uregina.ca Language: English - Date: 2003-07-24 14:16:44 Edward Emerson Barnard Meteoroid Denning Science Space Alfred Denning Baron Denning Astronomy William Frederick Denning Meteor shower
263	PDF Document Add to Reading List Source URL: www.nightlife.demon.co.uk Language: English - Date: 2005-02-28 15:53:37 Observational astronomy Amateur astronomers Astronomy Now Solar telescope Patrick Moore European Southern Observatory Lockyer Observatory and Planetarium Astronomical Society of South Australia Institute of Astronomy Cambridge Astronomy Amateur astronomy Science
264	PDF Document Add to Reading List Source URL: www.alpo-astronomy.org Language: English - Date: 2008-06-15 21:23:34 Amateur astronomers Terrestrial planets Association of Lunar and Planetary Observers Lunar dome Walter H. Haas Transient lunar phenomenon Michael D. Reynolds Venus Astronomy on Mars Astronomy Observational astronomy Space
265	Untitled Add to Reading List Source URL: alpo-astronomy.org Language: English - Date: 2008-06-15 21:20:57 Astrological aspects Amateur astronomers Association of Lunar and Planetary Observers Astrometry Planetary science Observational astronomy Walter H. Haas Lunar dome Lunar and Planetary Laboratory Astronomy Astrology Space
266	PDF Document Add to Reading List Source URL: arxiv.org Language: English - Date: 2009-05-28 18:31:04 Astronomer Space European Southern Observatory Chinese astronomy Amateur astronomy Patrick Moore Confederation of Indian Amateur Astronomers Astronomy Science Amateur astronomers