... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...
... Siding Spring Observatory by day - Tim WetherтАж . Siding Spring Observatory 2.3 m (looking up aтАж . ... Title: Siding Spring Observatory 2.3 m (looking up at the secondary mirror) . Description: NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission. ... Siding Spring Observatory 2.3 m (looking up at the secondary mirror) NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission. ...
... In this section, we develop a physical model of the secondary as a disk that is centrifugally supported in the radial direction and hydrostatically supported in the vertical direction. We assume that the disk is vertically isothermal and well mixed. ... where is the mean molecular mass of the gas, is the orbital period at the outer edge of the disk in years, and all of the mass of the secondary has been assumed to be concentrated near its center, so the Keplerian approximation is valid. ...
... Procedure . ... Wind Baffle Pendant Control, located in the 2.5m enclosure. Spreader Bar for wind baffle counterweights, located behind the Machine shop. ... Wind baffle frame tied to eyebolt in floor. ... Move the inner white wind baffle counterweight from the temporary mounting blocks at the front of the wind baffle frame to the standard location at the back. ... Rig the secondary truss to the overhead crane using a large shackle and 4 long nylon straps (load capacity of 1000 Lb. each). ...
Eyepieces Forum Message . ... Post . ... Secondary Offset . ... Post Message | ... Posted by Jarvis Krumbein on November 2, 2003 18:30:37 UTC . ... Secondary offset - gjeckes - November 2, 2003 - 21:41 UTC . ... www.astronomy.net . About Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
eDucation . ... Primary Schools . Post Primary . ... The Post Primary School educational programme is designed to be both fun and rewarding for students. The Key Stage 3 curriculum is especially rich in links to astronomy and space.€а There are dozens of opportunities to link the PlanetariumтАЩs work to the curriculum.€а We have designed some thought-provoking workshops which will retain their power long after the Planetarium visit is over.€а . ... тАв Northern Ireland Curriculum - Science . ...
... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... This shows the Sun, Moon and Earth (not to scale) together with the . ... They have tested the technique on the Earthshine, the light reflected from the Earth by the Moon, and showed that it can reveal the presence of life in our planet. ... This technique uses the fact that the light reflected from the planet is polarised, whereas that emitted by the star is not. ... Polarised light can tell us about the reflecting surface...
... Космическая галерея 1 . ... Фантастические рисунки . ... Фантастика и Фэнтези . ... Полезные ссылки . ... Ссылки на фантастические и фэнтези ресурсы помещены в разделе "Фантастика и фэнтези". Исследование космоса . Официальная страничка Национального управления по аэронавтике и исследованию космического пространства. ... Английский. Рекомендуется. ... Фантастические и космические темы Джона Си. ... Фантастические рисунки ] [ Космическая графика ] [ Фантастика и фэнтези ] . ...
Home | Products | How to contact ] . ... GRINEXT Corp. ... Gradient Optics . Research and Develpment . Gradient-Index Optical Components Manufacture . Gradient-Index ( GRIN ) glass preforms . GRIN lenses . for fiber lasers optics . ... Research in the field of ion-exchange technology . of gradient-index glasses . with different types of gradient . ... 3D-gradient . ...
До конца XIX века об астероидах сложилось представление как об одиночных телах. ... Расстояние между КА и Гаспрой в момент сближения составило 16000 км и это позволило детально сфотографировать поверхность астероида, размеры которого составляют около 15 км. В конце августа 1993 г. "Галилео" пролетел на расстоянии 11000 км от астероида 243 Ида. ... Матильда имеет размеры 50x50x70 км и является крайне медленно вращающимся астероидом - один оборот за 17.5 суток. ...
... Corvus Capital, along with its own capital, has the backing of a number of international funding partners. ... MyCloudtag App has launched in the Apple App Store Google Play store! App Fitness & Health . Andrew Regan lead a 10 man team on the first ever there-and-back crossing of the Antarctica. ... CloudTag is a London Listed Company focused on the Fitness and Wellbeing Market. AIM Fitness & Health . Sirius Petroleum is an Oil Gas Company listed on London's AIM. AIM Oil & Gas . ...
... Observing springtime deep-sky objects with a large telescope . ... Buy and sell astronomy gear April 9 . ... Astronomy.com: Jim Forbes . ... A refracting telescope makes use of this property with a carefully made lens having curved surfaces. ... The first telescope (of any type) was constructed by the Dutch spectacle maker Hans Lippershey (1570 1619) who, on October 2, 1608, filed a patent application for "an instrument for seeing faraway things as though nearby." ... Buying your first telescope . ...
... The following table may serve as a quick reference to select certain pattern types of recognized events (i.e. away from CCD edges, bad pixels etc.) ... doubles in Y with Y(main) Y(secondary) . ... doubles at CCD window or bad pixels . ... Note: as of version 6.30.4 PATTERN values of 128 have been changed to 0 (i.e. bit is not set anymore for singles), and PATTERN values of 205 have been changed to 1-4 (i.e. and bit are not set anymore for doubles)! ... free for additional pattern related flag . ...
RECREATIONAL TELESCOPES . ... ASTRONOMICAL TELESCOPES . ... Home Products Telescopes Astronomical Telescopes ASTELE™ 152MN . ... Whatever eyepiece you're using at the time is your finder eyepiece. ... 152MN is 4.4, so, unlike telescopes with much longer ?-ratios, you're able to use low magnification (27.4 X, 2.3° with the 25 mm PlЖssl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE? ... BK7 optical glass . ...
... Роман Евгеньевич Ильинский email : ilinsky_r@mail.ru . ... Ильинский Р. Е., Ровенская Т. С. Дифференциалы луча в оптической системе // Вестник МГТУ. ... 1998.- ... Roman Ilinsky , Gradient-index meniscus lens free of spherical aberration, Journal of Optics A: Pure and Applied Optics, volume2, number 5, pages 449-451, year 2000 . ... Ильинский Р. Е. Определение реальных габаритов пучков в градиентных оптических системах // Прикладная оптика -2000: Тез. докл. ... 2000.- ... ROMAN ILINSKY . ...
... Новости ? ... Библиотека ? Форум ? ... Основы ? ... Colonization Основы астрономии Солнечная система . ... Уран - седьмая от Солнца и третья по величине диаметра планета Солнечной системы. ... Поэтому полярные области Урана получают большее количество энергии от Солнца, чем экваториальные области. ... У Урана 15 известных и имеющих названия лун и 5 недавно обнаруженных, еще не получивших наименования; таким образом, у Урана самое большое количество спутников из всех планет Солнечной системы. ...
1972, May 23 born in Mannheim / Germany . ... 1994-1998 studies in physics at the University of Heidelberg / Germany . ... 1998 degree Diplom-Physiker diploma thesis at the Landessternwarte in Heidelberg . ... 1999-2002 Ph.D. thesis about the simulation of jets of highly redshifted radio galaxies in Max Camenzind's group at the Landessternwarte in Heidelberg . ... 2002-2004 Postdoc in Max Camenzind's group at the Landessternwarte in Heidelberg . ... This page is maintained by Martin Krause ...