... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Our calculations show that although the Newtonian model works very well for almost all practical purposes for the well known showers during present epochs, there could be some exceptional combinations of orbital elements for which the general relativistic precession in argument of pericentre and its influence on nodal distances could become significantly pronounced and decisive for predicting any earth-meteor intersection. ...

Общая Астрономическая Конференция . ... Правила форума . ... Сообщения за день . ... Добро пожаловать на Общая Астрономическая Конференция. ... Форумы общей направленности . Любые вопросы от новичков (просматривают: 17) . ... Общий форум любителей астрономии (просматривают: 7) . ... Новости магазина Starshop.ru . ... Менее астрономические товары (просматривают: 1) . ... Форум исключительно для сообщений об испытаниях астрономической техники. ... Общая Астрономическая Конференция статистика . ...

... The IRAF task rvcorrect is used to compute radial velocity corrections. rvcorrect is in the IRAF astutil package and it calls on task observatory , which is also found in astutil. The following steps are an example of its use for an HST dataset where the HST velocity around the Earth is ignored (maximum residual: +/- ~7.8 km/s): . ... Here is an example of file rvcor . ... Run the rvcorrect task: cl>rvcorrect f=rvcor.in > outputfile The above example produced the following output file. ...

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... AstroCC is a coordinate conversion utility for astronomy. It accepts an object designation or the coordinates of an object and calculates coordinates in alternative systems, and at different dates, times, and locations. It also provides lunar and bright planet coordinates to aid in planning observations. ... BJD values may also be retrieved from http://astroutils.astronomy.ohio-state.edu/time/utc2bjd.html which is based on Eastman et al. ... Coordinate data are obtained from SIMBAD. ...

... observatory code . ... projections of the geocentric radius-vector of observatory on the Earth equatorial plane and on the Earth rotation axis, dxy and dz, correspondingly; both quantities are expressed in parts of the equatorial radius of the Earth taken as 6378.137 km; they are known as parallax constants . ... The observatory code is a string that contains three symbols, the first one being digit or letter, the second and the third ones being digits. ... So, code B47 means number 1147. ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

... SAI CAS . ... Catalog Access Services . ... This site is about the Virtual Observatory project at the Sternberg Astronomical Institute, Moscow University ( SAI MSU ). We provide a public access to the growing set of astronomical services developed by the SAI RVO development team in accordance with the Virtual Observatory standards. ... We provide access (programmatic and interactive) to the all major and biggest astronomical catalogs (about 4 billions objects total) as well as other web-services. ...

The Special Astrophysical Observatory of Russian Academy of Sciences is one of the leading center of stellar magnetism study. ... Our observatory every 3-5 years holds an International Conference "Magnetic Stars" during past 30 years. ... The conference proceedings were published in book "Stellar Magnetism", Editors-in-chief Yu.V. Glagolevskij and I.I. Romanyuk (Saint Petersburg, Nauka, 1992), 270 pages. ... Conferences . History . ... Laboratory for the Stellar Magnetism Study of SAO of the RAS . ...

... 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. Representations of distortions in FITS world co ordinate systems Mark R. Calabretta Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia Francisco G. Valdes National Optical Astronomy Observatories, PO Box 26732, Tucson, AZ 85719, USA Eric W. Greisen National Radio Astronomy Observatory, PO Box O, Socorro, NM 87801-0387, USA Steven L. Allen UCO/Lick Observatory, University of California, Santa Cruz, CA 95064, USA...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. May 6, 1998 . Beijing Ancient Observatory . ... Explanation: Did observatories exist before telescopes ? One example that still stands today is the Beijing Ancient Observatory in China. Starting in the 1400s astronomers erected large instruments here to enable them to measure star and planet positions with increasing accuracy. ...

... The polygons of different observatory . ... geographical (Greenwich geocentric) . coordinates of the polygon's corners, . or by the geographical coordinates . ... GGLat (deg) . GGLong (deg) . ... Polygon's corners . geographical coordinates . Back to the top . Polygon's corners geographical coordinates . ... The central point geographical . coordinates and extensions . ... GGLat extension (deg) . ... GGLong extension (deg) . ...

Our group includes both theoreticians and observers working on problems related to many different aspects of star formation. You can learn more about us by following the links provided here below. We will try to keep these pages updated as frequently as possible, however do not hesitate to contact us directly if you encounter problems while browsing or do not find the specific information that you are looking for. Click on the following for more information . Our Group . ...

DIGITAL WDC EXCHANGE FORMAT . FOR OBSERVATORY 1.0 MINUTE VALUES 1. ... DATA-1 .. DATA-60 are 1-minute values of the given element for that hour. ... Typically, digital 1-minute values received by WDCs from organizations operating automatic magnetic observatory instruments are averages of more frequendy sampled values, e.g. 10-second point samples. ... If the method used to obtain 1-minute average values is important to a user, the WDC will assist in determining the exact procedure applied. ...