Different types of satellite orbits have different uses: while the synchronous orbit is best for communication satellites, Lagrangian point orbits help monitor the solar wind before it reaches Earth. A low altitude polar orbit is widely used for monitoring the Earth because each day, as the Earth rotates below it, the entire surface is covered. ... A different choice was made for MAGSAT, orbited 1979-80 to survey the Earth's own magnetic field near its surface. ...

... ADS Abstracts Service and Moscow mirror . ... The Astrophysical Journal . The Astronomical Journal . Astronomy Astrophysics . ... Data . ... Astronomy: Databases, Images and Surveys . ... Canadian Astronomy Data Centre . ... NASA/IPAC Extragalactic Database (NED) . ... Multiwavelength Atlas of Galaxies . ... Digital Images of 113 Nearby galaxies . ... NCSA Astronomy Digital Image Library . WFPC2 Images of the Early-Type Galaxies . SDSS images of Galaxies . ... IDL . ... IDL FAQ . ...

... ISC Kosmotras . ... Dnepr launch record 17 August 2011. ... Having been launched at 11:15 Moscow time from Baikonur Cosmodrome, the Dnepr LV (a converted SS-18 ICBM) successfully injected 5 RapidEye spacecraft into orbit. ... Dr. Vladimir A. Andreev, Director General of ISC Kosmotras, speaking on behalf of the Company, extended his congratulations on the successful launch to the launch customers, namely British SSTL, Canadian MDA and German RapidEye AG. ... Dnepr LV Performance . ... Launch Sites . ...

Главная . ... О звездах типа UX Ori . ... Звезды: . ... Ссылки . ... Астрономический Журнал . Письма в Астрономический Журнал . The Astronomical Journal . The Astrophysical Journal . ... ASP CONFERENCE SERIES e-Book Access Site . ... Электронный журнал "Переменные звезды" . ... Крымская астрофизическая обсерватория . Обсерватория Campo Imperatore (Италия) . Главная Астрономическая обсерватория (Пулково) РАН . Специальная астрофизическая обсерватория . ...

Progress in science is inversely proportional to the number of journals" . ... PHYSICS JOURNALS . SPIRES-HEP Database Covers more than 415,000 high-energy physics related articles, including journal papers, preprints, e-prints, technical reports, conference papers and theses, received by the SLAC and/or DESY Libraries since 1974. ... Journal of Physics G: Nuclear and Particle Physics . ... Journal of Geometry and Physics (Special Issues) . ... Journal of Nuclear Materials (Special Issues) . ...

... OF MARTIAN MISSION ELEMENTS . At present, RSC Energia has developed a conceptual configuration for the interplanetary orbiter where the crew will work during the entire interplanetary transit. ... Interplanetary expedition vehicle assembly plan has been developed. ... A program has been developed for building a series of small spacecraft based on the interplanetary vehicle concept with electrical propulsion main engines and solar arrays. ... Official WEB-site of S.P.Korolev RSC Energia . ...

... Gallery . ... Mars . ... Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . ... Title: Deimos orbiting Mars . ... In the animation, Deimos is moving along its orbit around Mars. Each frame is around 10 minutes apart. NOTE: All images and movies are copyright and must not be reproduced or mirrored in any form without written permission. ... Deimos orbiting Mars An over-exposed Mars and one of its moons, Deimos (faint spot in lower-left quadrant). ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

... Solar System . ... Planets . ... Batygin and Brown suggest the planetтАЩs existence through mathematical modelling and simulations with detailed analyses of other distant objects and their strange orbital features. ... This is not necessarily a new theory as for many years it was thought that a fifth gas planet could have been ejected from the early Solar System, 4. 5 billion years ago due to a gravitational encounter with Jupiter and Saturn, for example during the period described by the Nice Model...

... Eyepiece 2015 Archive . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Eyepiece ,€аthe monthly newsletter for the membership of the Amateur Astronomers Association of New York, provides readers with a varied diet of astronomy news in the metropolitan area and beyond. ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by ...

... Binary orbits in the acceleration/period plane . Circular Orbits . ... We first present the equations for the period and acceleration of a pulsar in an eccentric binary system as a function of its position in the orbit. ... In Freire, Kramer & Lyne (2001) (from where most of this text and following equations are taken), we describe in more detail how circular binary orbits can be determined from the observed periods and accelerations of the pulsar. ... where is the orbital period of the binary. ...

... Galaxy Evolution home . Cavendish Astrophysics . Cavendish Laboratory . ... Cosmological evolution of star-forming galaxies . The origin and evolution of radio sources . Radio sources and their environments . ... Local Information . ... Journals . ... Paul Alexander . P.Alexander@mrao.cam.ac.uk . The AP local pages has a full list of journals . The AP resources page . Last modified: 20/1/2002 . ...

... Новости . ... Орбитальный аппарат Mars Reconnaissance Orbiter благополучно передал на Землю информацию, отправленную ему зондом "Феникс", после чего его УВЧ-передатчик, использовавшийся для связи с зондом, отключился по неустановленной причине, сообщает NASA. ... На сайте NASA опубликованы многочисленные снимки, сделанные как Mars Reconnaissance Orbiter, так и самим "Фениксом". ... Феникс" на Марсе: вода найдена . ... Ключевые слова: Марс , Phoenix , MRO , Mars Reconnaissance Orbiter , Феникс . ...

... Parameters of the Moon-perturbed orbit . ... From orbits consistent with this limitation and with the date of the launch October 1, 2000 as an example, an orbit was selected with apogee directed to the North Galactic pole at the begining and rotation of orbit plane was maximized. The initial state vector is given in the inertial coordinate system in epoch J2000.0. ... The orbit has initial perigee radius Rp=7000.0 km, initial apogee radius Ra=343000.0 km and initial period T=8.453 days. ...

... March 14, 1996 . Comet Hyakutake's Orbit . ... The orbits of the Earth and this brightening comet are shown in the above diagram. ... The shape of the comet's orbit is close to a parabola. The comet has come in from the outer Solar System, will pass near the Earth in late March, and pass near the Sun in late April. Comet Hyakutake will appear bright in late March because it is so close to the Earth, and will again appear bright in late April because it is so close to the Sun. ...

... Сегодня: 10 апреля 2016 г. В 15:43 по московскому времени американский космический зонд Mars Reconnaissance Orbiter стартовал с космодрома на мысе Канаверал (штат Флорида) с помощью ракеты-носителя Atlas-5. ... Изначально запуск "марсианского разведчика" к Красной планете был запланирован на минувшую среду, но он дважды переносился в связи с неполадками ракеты-носителя. ... Американский космический зонд Mars Reconnaissance Orbiter отправился к Красной планете . ...

Американский космический зонд Mars Reconnaissance Orbiter отправился к Красной планете . ... В 15:43 по московскому времени американский космический зонд Mars Reconnaissance Orbiter стартовал с космодрома на мысе Канаверал (штат Флорида) с помощью ракеты-носителя Atlas-5. ... Зонд должен достичь орбиты Марса к марту 2006 года. ... Из-за сокращения бюджета аппарат Mars Reconnaissance Orbiter станет последним американским искусственным спутником Марса в этом десятилетии. ... Планета Марс . ...

... Новости астрономии и космонавтики (Модераторы: Karen , recarrion , LeMay ) ? Mars Reconnaissance Orbiter . ... Сообщений: 1 351 . Рейтинг: +27/-15 . Ответ #160 : 10.03.2006 [11:46:55] ? ... Цитировать Сегодня, 10 марта, в 12 часов 25 минут по московскому времени зонд Mars Reconnaissance Orbiter (MRO) совершит маневр торможения, с которого начнется переход аппарата на очень вытянутую орбиту вокруг Марса с периодом обращения 35 часов. ... Сообщений: 6 145 . Рейтинг: +262/-24 . ...

... Jay Apt (Ph.D.) . NASA Astronaut (Former) . ... PUBLICATIONS: Dr. Apt shared his images and knowledge in the publication Earth in Orbit : NASA Astronauts Photograph the Earth , written in conjunction with NASA scientists Michael Helfert and Justin Wilkinson and published by the National Geographic Society. ... From 1976 to 1980 he was a staff member of the Center for Earth & Planetary Physics, Harvard University, supporting NASA s Pioneer Venus Mission by making temperature maps of Venus from Mt. ...

... Bad Astronomy . ... Bitesize Astronomy . ... The Nine Planets . ... The Sun stays at the center and the planets orbit it serenely, each in its place. ... Tiny Pluto, orbiting the Sun an average of nearly 40 times the Earth's orbital radius, has an odd orbit. Most planets orbit the Sun in nearly perfect circles, but Pluto's orbit is noticeably elliptical. ... The orbits of Pluto and Neptune have a coincidental timing to them: Pluto orbits the Sun twice for every three times Neptune does. ...