Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . ... 2015 . ... December . ... December, 2015 . Visual indices of solar activity by author's observations . ... Average . ...

. Date, from: . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 January February March April May June July August September October November December 1952 1953 1954 1955 1956 . to: . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 January February March April May June July August September October November December 1952 1953 1954 1955 1956 . Longitude, from: . to: . Latitude, from: . to: . Area, from: . to: . Brightness, from: . to: .

As announced by the IAU Central Bureau for Astronomical Telegrams in Circular No. 9004 on 11 December 2008, Bulletin C36 of the International Earth Rotation and Reference Systems Service announced that a positive leap second will be added on 1 January 2009. ... Bulletin C is mailed every six months, either to announce a time step in UTC or to confirm that there will be no time step at the next possible date. Daniel GAMBIS Head Earth Orientation Center of IERS Observatoire de Paris, France ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Декабрь 1998 . ... Дата: 22 декабря 1998 (1998-12-22) От: Alexander Bondugin Тема: Cassini Update - December 18, 1998 Привет всем! ... Дата: 22 декабря 1998 (1998-12-22) От: Alexander Bondugin Тема: NEAR Update - December 18, 1998 Привет всем! ... Дата: 22 декабря 1998 (1998-12-22) От: Alexander Bondugin Тема: Sky Telescope News Bulletin - December 18, 1998 Привет всем! ...

9th European and 5-th Euro-Asian Astronomical Society Meeting . 29 May - 3 June 2000, Moscow, Russia . EUROPEAN ASTRONOMY AT THE TURN OF THE MILLENIUM . The 9th Meeting of the European Astronomical Society (EAS) will be held in Moscow, Russia, jointly with the 5th Conference of the Euro-Asian Astronomical Society (EAAS). ... Invited reviews of outstanding problems of modern astronomy are expected to be given at plenary sessions. ... December 20, 1999: Pre-registration form deadline . ...

To see a Russian version of this page, click here . ... Bochkarev Nikolai Gennadievich . astrophysics researcher: . born: Moscow, May 19, 1947; . ... Jr. researcher Sternberg Astronomical Inst., ... Soviet (Russian) Working Group on Interstellar Matter, Moscow , 1979-; . ... Madison, 1991. ... ALocal Interstellar Matter, 1990, . Basic Physics of the Interstellar Matter, 1992; co-author: . ... Physics of Interstellar Matter, 1979; . ... All-Union Astronom. Geodesical Soc., ... Astronom. ...

... Obs., vol.36, December, 2000, p.64-68. ... Solar Physics, 2000, 195, 401-420. ... A.M. Uralov, H. Nakajima, V.G. Zandanov, and V.V. Grechnev Current sheet associated radio sources and development of the magnetosphere of active region revealed from 17 GHz (NoRH) and Yohkoh/SXT data // Sol.Physics, 2000, 197(2), 275-312. ... Russian-Chinese Workshop 'Solar-Terrestrial physics and its applications (Space weather), Abstracts, 14-19 December 2000, Irkutsk, 2000, p.5 . ... V.G. Ledenev. ... 2000. ...

... R. E. Jackson . ... H.-M. Adorf . ... D. C. Wells . ... AstroWeb is a World Wide Web (WWW) interface to a collection of Internet accessible resources aimed at the astronomical community. ... The goal of AstroWeb is to be the most complete, up to date, and useful listing of Internet accessible astronomical resources available anywhere. ... Jackson, Wells, and Adorf noticed that they and others had created largely overlapping lists of Astronomical resources. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... LX600 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... MeadeтАЩs LX90 ACF is a favorite of astronomers making the jump to their first, serious, larger aperture telescope. ... Astronomer InsideтДв then takes you on a guided multimedia tour of the best objects in your sky. ...

... At present, he is a Leading researcher at the Department of Non-Stationary Stars and Stellar Spectroscopy, heading the group of the General Catalogue of Variable Stars, and a Leading researcher at the Department of Variable Stars and Galactic Astronomy of the Sternberg Astronomical Institute, heading the group of Variable Stars. ... P.P. Parenago, B.V. Kukarkin, P.N. Kholopov leaded the team of variable star catalogue compilers at Astronomical Council/INASAN and at Sternberg Institute through years....

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

Альтернативный форум . Scientific.ru Все форумы . ... Re: Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET . x203a; x203a; x203a; в ответ на: Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET Abramyan G.L. : An alternative theory . ... Astronomers Create 3D Map of Dark Matter Space.com 07 January 2007 01:37 pm ET Abramyan G.L., 10.01.2007 01:10 . ... Re: Прочел и привожу текст, меня вомутивший. Анатолий Рыков, 11.01.2007 08:53 . ...

... Dmitry Stepanovich (VIDEO of March 2011) . Olga Silchenko, a soloist of the Early Music Theatre . ... Anna and Olga Silchenko have presented the duets by Rubinstein and Chaikovsky (VIDEO) . ... Two Russian romances - duets by Olga Silchenko and Dmitry Stepanovich (VIDEO) . ... N. Rimsky-Korsakov "The Tsar's Bride", the duet of Lubasha and Gryaznoy - by Olga Silchenko and Dmitry Stepanovich (VIDEO) . ... Vivaldi "Magnificat", 6th part, duet by Anna and Olga Silchenko (VIDEO) . ... Olga Silchenko . ...

. Предисловие. Введение. Глава 1. НЕМНОГО ТЕОРИИ. 1. Свет, оптические детали и характеристики систем. 2. Конические сечения. Поверхности вращения. 3. Как работает телескоп? . 4. Простейший телескоп. 5. Аберрации. 6. Ахроматические линзы. 7. Идеальный объектив и тонкая структура изображения. 8. Разрешающая сила телескопа. 9. Предельные увеличения телескопа. 10. Эффективность телескопа. 11. Типы телескопов.

... ADC_Keywords: Galaxy catalogs ; Nonstellar objects Description: NGC 2000.0 is a modern compilation of the New General Catalogue of Nebulae and Clusters of Stars (NGC), the Index Catalogue (IC), and the Second Index Catalogue compiled by J. L. E. Dreyer (1888, 1895, 1908). ... The order of the new catalog is strictly by right ascension, the NGC and IC objects being merged into one machine-readable file. ... The book also contains a table of right ascensions for NGC and IC objects. ...

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J2000 name -- a 10 letters long name of the source in notation Jhhmmdddmm where hhmm are hours and minutes in right ascension, dddmm are degrees and minutes in declination at the J2000.0 epoch. No rounding is performed.

O-C for observatory with code - 046. December , 2004 . ... 0.16 0.22 +/- 0.11 +/- 0.12 Internal error of single observation 0.24 0.26 ----------------------Compressed Ephemeris DE200/LE200 -------------- MP Obs Dynamical Time RA ( O-C )cosDEC DEC ( O-C ) h m s ' 33342 046 2004 12 12.796066 23 54 25.365 0.34 - 9 14 38.23 0.30 33342 046 2004 12 12.798736 23 54 25.545 -0.24 - 9 14 30.06 0.26 33342 046 2004 12 12.799866 23 54 25.637 -0.24 - 9 14 26.88 -0.03 33342 ...

DECEMBER 21, 2014 Online Course Statement of Accomplishment WITH DISTINCTION ALEXANDER W OLF HAS SUCCESSFULLY COMPLETED A FREE ONLINE OFFERING OF THE FOLLOWING COURSE PROVIDED BY STANFORD UNIVERSITY THROUGH COURSERA INC. ... PER ENGE PROFESSOR OF AERONAUTICS AND ASTRONAUTICS STANFORD UNIVERSITY DR. FRANK VAN DIGGELEN BROADCOM FELLOW & VP OF GPS TECHNOLOGY, BROADCOM CORP. ... IT DOES NOT CONFER A STANFORD UNIVERSITY GRADE, COURSE CREDIT OR DEGREE, AND IT DOES NOT VERIFY THE IDENTITY OF THE STUDENT. ...