Next: Photometric Performance of NICMOS Up: NICMOS Data Calibration and Previous: The STScI NICMOS Calibration . ... Cycle 7 Calibration Plan. ... This document summarizes the goals and status of the various calibration programs that form the basis of the NICMOS Cycle 7 calibration plan. ... This document summarizes the content, goals and status of the Cycle 7 calibration plan for NICMOS and also points to the WEB pages where detailed information on specific topics of interest can be found. ...

... The source exhibits a mas-scale structure which, according to the USNO multi-epoch monitoring at 2.3 and 8.4 GHz over the period from 1994 July through 1998 April, undergoes considerable changes in the brightness distribution and positions of the major structural features. Our image is qualitatively consistent with the structural pattern of the source. ... We note a difference of ~90 in position angles of secondary components in our image and the 5 GHz VLBI image by Shen et al. 1998). ...

... Variable Star Observing . ... Thursday, Nov 13, 2014 at 8:00 PM . While taking deep-sky images or observing double stars through the eyepiece can be fulfilling, the universe is dynamic and constantly changing - never more obviously seen than with variable stars. ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Nov . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... 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; . ...

... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

Вы находитесь здесь: Каталоги . ... Каталоги . Каталоги для SIMFOV . Каталоги для программ-планетариев . ... Описание каталогов . ... Выложена полная версия каталога 2MASS в формате SIMFOV и версия программы, поддерживающая этот каталог. ... Программа SIMFOV поддерживает только новую версию каталога. ... В этом разделе вы сможете найти все каталоги, поддержиавемые программой SIMFOV, а также специальные версии каталогов A20e и ASC для программ-планетариев (типа Cartes du Ciel). ...

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. ...

... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

Lectures . ... Home Lectures Lecture Series 2011-2012 Lecture Series 2011-2012 ? тАЬBest Short Astronomy VideosтАЭ ? Robert Nemiroff . ... Lecture Series 2014-2015 . Lecture Series 2013-2014 . ... Lecture Series 2011-2012 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... теория гравитационного поля и фигуры земли (В.В.Бровар, Н.П.Грушинский, Н.А.Чуйкова, Л.А.Савров), . ... Экспериментальная часть вместе с влившейся группой сотрудников физического факультета была объединена в Отдел Гравитационных Измерений (далее ОГИ). ... Заведующим новым отделом стал д.ф.м.н. В.Н.Руденко , перешедший в ГАИШ с Физического факультета, ранее работавший по проблеме детектирования гравитационного излучения под руководством создателей этого направления Я.Б.Зельдовича и В.Б.Брагинского. ...

Previous Editions of the M111: . ... The Christmas Star - Fact Or Fiction? ... Any time you have something you'd like to offer - be it a story of how you first got started in astronomy, a star party you just attended, a telescope you just bought, or your favorite constellation, just drop me a line with the story included and I'll be sure to get it posted! ... First and foremost, I'd like to thank everyone who took the time to vote on this year's board and officer elections both in person and by proxy. ...

... 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., ...