... Точность изготовления поверхности зеркала, т.е. максимально допустимые отклонения от заданной формы, зависит от длины волны света, на которой будет работать зеркало. ... К примеру, зеркало, работающее в видимом свете (длина волны = 0,5 микрона), должно быть изготовлено с точностью 0,06 мкм (0,00006 мм). ... В простейшем случае окуляр может состоять только из одной положительной линзы (в этом случае мы получим сильно искаженное хроматической аберрацией изображение). ... на astronom-ntl.narod.ru . ...
... Telescopes . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... By 1977, Meade Instruments offered a broad range of telescope accessories and parts for the serious amateur, a range of accessories and parts that, in fact, permitted the company to bring out its first in-house manufactured telescopes, Meade Models 628 and 826 6-inch and 8-inch reflecting telescopes. ...
Telescope Mounts . ... I just collected all the information I used in considering what kind of telescope mount I wanted and made a web page. ... A very important aspect to using a telescope is the mount. ... An altazimuth mount is a design to hold the OTA and allow the user to guide the scope by using two motions. ... The newest GOTO telescopes can do all of this without equatorial mounts and polar alignment because the computer can be programmed to know the position of the scope by using guide stars. ...
To Seek or Not to Seek? In this Thread, we will begin our experience with the tools of scientific inquiry. We will be observing our world, inside and outside of the classroom, looking for changes, perspectives, and patterns. ... Looking around outside will reveal many interesting things about the world around us. ... How many Investigation students in the classroom could tell you what the sky Everyday Classroom Tools: To Seek or Not to Seek? ... Inquiry the world outside the classroom. ...
... ОПЕРАЦИЯ "КЕДР" . Летом 1964 г. космодром начал подготовку к встрече партийно-правительственной делегации Советского Союза. ... Цель данного мероприятия - демонстрация мощи ракетно-ядерного щита и космической техники нашего государства. ... Встреча делегации готовилась под кодовым названием - Операция "Кедр". ... Наша часть 33797 (командир А. Г. Гонтаренко) готовилась по тематике С. П. Королева. ... В. И. Петушков привез в МИК КО китайские термоса под какао. ... Часть вошла в обычный ритм жизни. ...
Director : Rex Parker (609) 730-0670 drexparker@aol.com ereal times id s The Official Publication of the Amateur Astronomers Association of ... Princeton Treasurer: Ron Mittlestaedt (609) 771-6981 C8User@aol.com Secretary: Mark Jaworsky (609) 333-1130 MarkianSJ@comcast.net Program Chairman: Michele Novatski (856) 810-7385 Philenium020202@yahoo.com Editor: Victor Belanger (609) 448-8598 vic@apink.com Assistant ... New Program Chair to Join Re-elected Board of Trustees. ... New Keyholder. ...
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Ссылки http://www.princetonastronomy.org/newsletters/06_2004sidereal.pdf -- 1112.6 Кб -- 31.05.2004 Похожие документы
Sloan Digital Sky Survey Telescope Technical Note 19980416 . ... The common corrector . ... The Sloan Digital Sky Survey (SDSS) 2.5-meter telescope optical design is optimized for wide field (3њ), broadband (300 nm to 1060 nm) CCD imaging and multi-fiber spectroscopy. ... The second corrector element figure is in the negative of the usual form and placed closer to the focal plane. ... Grind and figure flat silica corrector for the Sloan Digital Sky Survey Telescope - Corrector Final Report", (1997). ...