| 书目名称 | Real Astronomy with Small Telescopes |
| 副标题 | Step-by-Step Activit |
| 编辑 | Michael K. Gainer |
| 视频video | http://file.papertrans.cn/823/822137/822137.mp4 |
| 概述 | Effectively demonstrates the use of an 80mm refractor for more than a "quick look" – it can be used as a real scientific instrument.Demonstrates the significant observations that can be made with a sm |
| 丛书名称 | The Patrick Moore Practical Astronomy Series |
| 图书封面 |  |
| 描述 | Thesmallrefractingtelescopewithitssimpledirectdesignandconstructionand permanently aligned optics is the time tested standard for personal use. Easily portable, it can be taken out of the house and set up at a moment’s notice. Or, it can be packed conveniently into a small car for traveling to a dark observing site. With moderate care and minimal maintenance, the telescope and mount canlastforgenerations. These instruments provide sharp, crisp high-contrast images of the Moon and planets. They are less susceptible to the effects of unstable air than larger ones, and because of their low maintenance and durability they are ideal for the parent educator or lifelong learner. Until recently, however, the high cost ofsmalltelescopesofsufficientqualityforseriousastronomicalusehaslimited theiraccessibility. During the past decade, innovations in optical design and manufacture have loweredcostandimprovedquality.Currentdevelopmentsinlensdesignmakeit possibletoproduceaffordablerefractingtelescopeswithshortertubelengthsand greater versatility. The once very costly 90-mm Maksutov–Cassegrain, with its optimumcombinationofeffectiveopticsandportability,nowsellsforamodest price. I have often seen |
| 出版日期 | Book 2007 |
| 关键词 | Design; Gainer; Introduction; Nation; astronomy; knowledge; stars |
| 版次 | 1 |
| doi | https://doi.org/10.1007/1-84628-508-9 |
| isbn_softcover | 978-1-84628-478-6 |
| isbn_ebook | 978-1-84628-508-0Series ISSN 1431-9756 Series E-ISSN 2197-6562 |
| issn_series | 1431-9756 |
| copyright | Springer-Verlag London 2007 |
|Archiver|手机版|小黑屋|
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