... Almost all DSOs require a telescope to see in any detail at all, though some can be detected with just binoculars, and a few can be barely seen with the unaided eye. ... DEGREE: Distances on the sky (sometimes called the celestial sphere) are measured in angular degrees rather than inches or feet. ... The magnification is the focal length of the telescope divided by the focal length of the eyepiece. ... Short focal length eyepieces are also termed high power, long focal length are low power. ...
... разработка теории и методов расчета лучевых дифференциалов первого, второго и третьего порядков в градиентных оптических системах; . ... разработка методов расчета геометрических аберраций второго и третьего порядка осесимметричных оптических систем, содержащих асферические поверхности и градиентные среды типа "псевдоаксикон"; . ... получены формулы для расчета смещения изображения и геометрических аберраций второго порядка в градиентных оптических системах с малыми нарушениями осевой симметрии; . ...
... The then president of the Society, Mr. Robert Burke, appointed a committee of eight or ten members, most of whom had made smaller mirrors, as an instrument committee, with Mr. Thorpe as chairman. ... Seriously, the best practicable solution seemed to be to build a machine to do the grinding and polishing. ... It was decided to grind the edges of the mirror to make it truly circular, as the rough cast glass was some 3/8 inch longer on one diameter than on the other. ...
Элективный модуль 'Космическая техника и технологии' . ... Разработка общей концепции программы по исследованию Луны. ... Разработка общей концепции космического корабля для межпланетных экспедиций. ... Разработка общей концепции марсианской пилотируемой космической программы. ... Разработка общей концепции полета на Луну с применением промежуточных космических станций. ... Разработка общей концепции использования сверхмалых космических аппаратов для инспекции объектов на орбите. ...
... The unlocked gate at the entrance to the observatoryтАЩs gravel driveway should remain closed to prevent the public from driving back to the observatory. ... This means that if there are still members of the public present at the observatory who do not wish to leave by 11:30 PM they will be locked in the park until a keyholder leaves and secures the gate(s) behind him/her. ... Roll the roof back using the hand crank near the computer room. ... Amateur Astronomers Association of Princeton, Inc., ...
Lectures . ... Inflationary Cosmology: Is Our Universe Part of a Multiverse?? ? by Alan Guth . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Dr. Alan H. Guth, Victor F. Weisskopf professor€аof physics at MIT, will deliver the AAA?s annual John Marshall Memorial Lecture on Friday, November 6, when€аhe discusses ?Inflationary Cosmology: Is Our Universe Part of a Multiverse?? ...
Observing sessions Dippach . We will meet every first Saturday each month. Meeting point will be on the parking in front of the railway station in Dippach-Gare. ... Only under clear skies . ... at: Clubroom 05:30 pm . ... Observation session . ... Meeting point: Dippach-Gare . ... AAL Facebook site . ... O Farol 72,rue Jean Jaures L-3490 Dudelange 05:00 pm . ... Meeting point: Parc Leh Dudelange . ... Meeting point: Dippach-Gare / side Dippach . ... Meeting point: Clubroom Dudelange . ...
Лента астрономических новостей . ... ГАЛАКТИКА" представляет . ... поиск на 'Галактике' Яндексе . Новости астрономии, январь 2005 . ... 19.01.2005. ... Январь 18, 2005 Красные карлики меньше и слабее, чем наше Солнце, но их количество составляет 70% звезд Нашей Галактики. ... Эта галактика находится на расстоянии 69 миллионов световых лет в созвездии Эридана. Январь 17, 2005 Большинство больших галактик имеют знакомую нам спираль, формирующую диск, окружающий центральную часть галактики. ...
... 000, 112 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...
... 2 Telescop e finder Do not rely on that the nominal alignment of coordinate system Auto Alignment made on stars will serve a long time. ... The Meade telesc tages: 1) there is no possibility to common error in the telescope soft system, when telescope moving in ope parking using command :hP# has the following disadvanobtain information on the completion of this procedure, 2) a often leads to tripping-over a limiter and to loss of coordinate a horizontal coordinate system. ... Home Position. ...
... Phase Diversity Imaging: Real Time Correction of the Atmosphere and Telescope . Dr. Robert A. Gonsalves . ... Join us this month for what promises to be an engaging talk by Dr. Robert A. Gonsalves, “Phase Diversity Imaging: Real Time Correction of the Atmosphere and Telescope.” Phase diversity imaging uses multiple images of an object to combat the deleterious effect of the changes in the atmosphere and telescope. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
The low aspect ratio, or spherical tokamak Globus-M [1] has recently been built in a support of international spherical tokamak plasma investigation program. ... The survey to determine the work scope in diagnostic design for Globus-M is given in the paper. ... The next one is an advanced diagnostic set intended to supply the data on basic plasma parameters: electron temperature and density profiles, ion temperature, plasma composition, radiation profile, Zeffective. ... Magnetic Diagnostics. ...
... Printed in the U.S.A. TWO MORE DISK GALAXIES WITH GLOBAL GAS COUNTERROTATION O. K. Sil'chenko1 ,2 , A. V. Moiseev3 , and V. L. Afanasiev3 3 Sternberg Astronomical Institute, Moscow, 119991 ... @sao.ru Received 2008 October 10; accepted 2009 January 1; published 2009 March 25 1 ABSTRACT We report a discovery of extended counterrotating gaseous disks in early-type disk galaxies NGC 2551 and NGC 5631 ... 2, 2009 TWO MORE DISK GALAXIES WITH GLOBAL GAS COUNTERROTATION 1553 Figure 2. ...