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主題: TED 分享 看火星衛星 濾鏡 作者: peter 於 2018-08-03 21:11:39 https://www.facebook.com/photo.php?fbid=2496264800387551&set=a.396690670344985.107726.100000121666737&type=3&theater
(https://scontent.ftpe8-2.fna.fbcdn.net/v/t1.0-9/38258379_2496264803720884_4958427700420149248_n.jpg?_nc_cat=0&oh=de29f30f01a8fe25e2bafe4b19cd1573&oe=5BC8D9FA) 主題: 回覆： TED 分享 看火星衛星 濾鏡 作者: peter 於 2018-08-03 21:34:39 討論
https://www.cloudynights.com/topic/391312-observing-phobos-and-deimos/ https://www.skyandtelescope.com/observing/celestial-objects-to-watch/the-martian-moons-in-200708/ (https://www.skyandtelescope.com/wp-content/uploads/OccultingBar_m.jpg) https://www.youtube.com/watch?v=08KzxcoI0Ec 主題: 回覆： TED 分享 看火星衛星 濾鏡 作者: peter 於 2018-08-03 21:48:03 sell occulting bars
https://www.cloudynights.com/topic/390610-why-does-no-one-sell-occulting-bars/ http://www.reinervogel.net/tipps_e.html (http://www.reinervogel.net/sonst/equipment/Okular_TMB_bar2.jpg) https://www.universetoday.com/121405/a-guide-to-observing-the-moons-of-the-solar-system/ (https://www.universetoday.com/wp-content/uploads/2015/07/DSC_0665.jpg) A homemade occulting bar eyepiece with the barrel removed. One bar is a strip of foil, and the other is a E-string from a guitar. Image credit: Dave Dickinson 主題: 回覆： TED 分享 看火星衛星 濾鏡 作者: peter 於 2018-08-04 08:45:50 MORE
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