... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

Near-Earth Asteroids and the Arecibo Observatory Radar The Arecibo Observatory radar is the world's most powerful instrument for post-discovery characterization and orbital refinement of near-Earth asteroids. Arecibo radar observations are critical for identifying asteroids that might be on collision course with Earth and, if necessary, preventing a collision. ... A model of the primary component of asteroid 1999 KW4, derived from radar data. ...

... In most astronomical observations the image intensity consists of contributions from both object and sky background. Depending on the complexity of the field and the type of object, different methods are used to estimate and subtract the background intensity. ... Non--linear filters are often used to remove stellar images and other sharp features (see Section ) while extended objects are very difficult to eliminate automatically. ...

... The UK has a very vibrant solar system science community highly regarded internationally. ... The knowledge gained from such research has significant application to other STFC science areas, and indeed the science of other research councils. ... We therefore seek support to provide the 2012 Introductory Solar System Plasmas School, which will provide valuable training for the next generation of solar system scientists. ...

... kupry@sai.msu.ru also kupry@asu.cas.cz . ... Solar expeditions. Astronomical Institute Czech Republic Examples IDL procedures Evpatoria Space Image Evpatoria Winter 2012 European Solar Physics Meeting Digital Images Album IDL Lib Karlovy Vary, 2008 List of publications Masha MAX MILLENNIUM PROGRAM My family (new) HSFA-2, 2005 Ondrejov (brezen 2005 ) Ondrejov webcam Photo Ondrejov observatory Praha SatTV Seznam SOHO Solar eclipse 31 July 1981 Software IDL programmes ...

... Астрономическая неделя с 11 по 17 апреля 2016 года . ... Александр Козловский . ... День открытых дверей на Пущинской РадиоАстрономической Обсерватории 09 апреля 2016 года . ... Полное солнечное затмение 9 марта 2016 года . ... Полное лунное затмение 28 сентября 2015 года . ... Затмение, которое произойдет 28 сентября 2015 года, является повторением через сарос (цикл повторений затмений равный 6585 дней или 18 лет 11 дней) полного лунного затмения от 16 сентября 1997 года с максимальной фазой 1,20.....

... Copyrightї1997 Bob Yen (byen@ix.netcom.com) (http://www.comet-track.com/hb/hb.html) . ... Information on Comet Hale-Bopp for the Non-Astronomer Hale-Bopp rotates about twice a day (3/14/97) . ... The Comet Observation Home Page was been selected to receive the Griffith Observatory Star Award for the week of February 2 - 8, 1997 for excellence in promoting astronomy to the public through the World Wide Web. ... Typically, about 1,000 individual users/computers access this page every day. ...

... REGISTRATION . ... 119991, Leninski prospekt 53, Moscow, Russia . ... The sun from radio to gamma rays new results from space and ground based observatories . ... Solar observations with high temporal and spatial resolution new look from SDO and Hi-C . ... Towards the sun: InterHelioProbe, Solar Orbiter, Solar-C . ... The sun as a star: solar cycle and space weather . ... Novbember 5, 2013 . Deadline for letter of invitation request . ... Publication of the workshop's program . ...