Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... A most promising problem is to investigate the interaction of two VHF powerful radiowave beams in the ionosphere, whose difference frequency is equal to the plasma frequency in some ionospheric area (that is, the difference frequency is taken in the range 1-8 MHz). ... Two-frequency interaction effects are based on radiowave non-linear mixing, which is rather complicated when describing and modelling the experiment. ...

Общая Астрономическая Конференция > Все про астрономическое оборудование > Астрономическое оборудование > Новые отражающие и просветляющие покрытия от Celestron . ... Просмотр полной версии : Новые отражающие и просветляющие покрытия от Celestron . ... New Starbright XLT high performance optical coatings are now available on all Celestron 8' and larger Schmidt-Cassegrain telescopes. ... You can simply see and photograph more faint object detail with a Starbright XLT coated Celestron telescope. ...

... С 2004 по 2007 года работала научным сотрудником Американской программы исследования Антарктиды (United States Antarctic Program), участвовала в зимовке на станции Амундсен-Скотт на Южном полюсе (Amundsen-Scott South Pole Station) и на станции Палмера (Palmer Station) на Антарктическом полуострове. ... С 2012 года и до отбора в отряд астронавтов работала в Национальной администрации по океану и атмосфере (NOAA - National Oceanic and Atmospheric Administration). ...

... Name (for family membership, include all family member names) Address City, State, Zip Code Home Phone Email Address Other Phone Alternate Email Occupation (if retired, list previous occupation; if student, list major) Employer or School My Employer will match my donation Membership List ­ Each year we publish our Membership List with name, city, email and home phone number and distribute this list to all members. ... Student Memberships are for FULL TIME students of any age. ...

AMATEUR ASTRONOMERS ASSOCIATION Membership Application Please note: membership dues are collected on an annual basis, at the start of every calendar year. ... Sky & Telescope Magazine o Astronomy Magazine o YES o NO Membership Fee Donation (optional) TOTAL $35 Please mail your completed application, along with a check or money order for the above total amount to: Amateur Astronomers Association P.O. Box 150253 Brooklyn, New York 11215 ...

Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... August . ... August, 2013 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...

... 13, Moscow 119992, Russian Federation, e-mail: busarev@sai.msu.ru; 2 Research Institute Crimean Astrophysical Observatory, p/o Nauchnyi, Crimea 334413, Ukraine, e-mail: prok@crao.crimea.ua Summary: We propose a combined method of astronomical investigations of small or distant planets incorporating registration of a set of integral spectra of an object and their frequency analysis. ... An application of the method is shown on example of asteroid 21 Lutetia. ... 6] Busarev V. V. (2002), Solar Sys. ...

THE 7-TH G. GAMOW'S ODESSA ASTRONOMICAL SUMMER SCHOOL «Astronomy and beyond: Astrophysics, Radioastronomy, Cosmology and Astrobiology» (Ukraine, Odessa, Chernomorka,7-12 August, 2007) SCIENTIFIC PROGRAM Tuesday, August 7 ­ 5.11, ­ 5.45, ­ 20.20 , ­ 20.55 THE DAY OF ARRIVAL 8.00-22.00. ... OPENING SUMMER SCHOOL MEMORIAL: Lection 1 10.00-10.20. ... LUNCH AND SEA COAST WALK AFTERNOON LECTURE: Cosmology: Lection 6 15.00-15.45. ... HOT COFFEE AND COLD WATER BREAK AFTERNOON SESSION: Cosmology: 17.00-17.20. ...

... Bad Astronomy . ... Bad Astronomy: The North Star, Polaris, is a very bright star. Good Astronomy: Polaris is a middling-bright star, easily missed. ... He said it was close to Polaris, the North Star, but he also said it was in the East. ... It's natural, I suppose, to think that such an important star should be bright, but really, that's a conceit, like thinking that the Earth is at the center of the Universe. If more people knew just why Polaris is the North Star, this Bad Idea would stop. ...

... Printed in the U.S.A. doi:10.1088/0004-637X/691/2/1222 AUTOMATED LASCO CME CATALOG FOR SOLAR CYCLE 23: ARE CMEs SCALE INVARIANT? ... CME RATE DURING CYCLE 23 Figure 2 shows the daily CACTus CME rate for cycle 23 in red, with the International Sunspot Number (e.g., Vanlommel et al. 2004) superimposed in gray as solar cycle reference. ... The CACTus CME speeds Figure 12. ... A comparison of a sample of common events shows that on average the CDAW CME width is wider than the CACTus CME width. ...

... Active Skepsis . ... Probably, one should know the results from any actions. ... As a result, a sceptic, who discredits, for example, the tales of Christian wonders, has to follow the practical recommendations of Christianity or any other belief knowing how to act. ... As a result, scepticism restricts itself with discrediting secondary wonders, permanently replacing one doubtful interpretation with another and telling nothing of life and action. ... Yuri Tikhonravov, Ph.D. Translated from Russian ....

. Authors: A.A. Suchkov , V.A. Marakov . Journal: Pis'ma Astron. Zh., 1976, v.2, p.38-385. Metallisity function of globular clusters in the Galaxy is constructed. It is found to have three "humps". This leads to a conclusion that there were three metal enrichment outbursts during the period of globular cluster formation. The constraints on the nature of metal sourses and on the early evolution of Galaxy are considered.

... During all period of our investigations Dr. N.Sumzina from the Institute of Applied Astronomy of RAS had prepared the Numbered Minor Planet positions from MPC Database for our processing with kind permission of the Director of Minor Planet Center Prof. Braian Marsden. ... Our extensive processing of the MPC data allows us to conclude that CCD observations of the Numbered and Unnumbered Minor Planets have the errors, sometimes very crude. ...

... 25 июля 2000 . ... Почему звезды мерцают . ... Как можно видеть невооруженным глазом , звезды находятся так далеко, что видны нам, как бесконечно малые точки. Однако земная атмосфера неоднородна и различные части воздуха делают различные изображения единичной точечноподобной звезды. Так как атмосфера всегда меняется и перемещается , то число и положение изображений также всегда изменяется и в результате звезда кажется мерцающей . ... А. Сергеев , оформление, 1999, 2000. ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Июль 1998 . ... Дата: 06 июля 1998 (1998-07-06) От: Alexander Bondugin Тема: Names On Vietnam War Memorial Wall To Fly In Space Привет всем! ... Дата: 06 июля 1998 (1998-07-06) От: Alexander Bondugin Тема: Mars Surveyor 98 Update - July 3, 1998 Привет всем! ... Дата: 06 июля 1998 (1998-07-06) От: Alexander Bondugin Тема: Galileo Spacecraft Sees Volcanic Fireworks On Jupiter's Moon Io Привет всем! ...

... They are known: active quantum frequency standards on the ammonia molecules beams (molecular generator) on the hydrogen generator (hydrogen generator) passive quantum frequency standards on the Cs atoms’ beam (cerium atomic beam tube); active and passive quantum frequency standards with an optical pumping of Cs or Rb steams. The stability of atomic beam quantum frequency standard achieves 10^ - 14. ...

Director: Rex Parker (609) 730-0670 drexparker@aol.com ereal times id s The Official Publication of the Amateur Astronomers Association of Princeton ... vic@apink.com Assistant Director: John Miller (609) 252-1223 jmiller@princetonastronomy.org Volume 34 From the Director January 2005 Number 1 Jan 11, 2005 AAAP meeting Following last month's remarkable presentation on CCD imaging hardware design, we will turn our attention in January's AAAP ... Happy New Year and Dark Skies! ...

Symbolic circuit-matrix processor and evaluator . ... This software is reliable over the range of benchmark circuit complexity (both *.CIR and *.MAT file). ... SYMBOL is a symbolic-algebra package which in contrast to REDUCE, MACSYMA, MAPLE, MATHEMATICA, MathLAB, MathCAD and other known multi-purpose systems is especially intended for analysis of any lumped, linear, time-invariant circuit. ... pure ASCII text . ... CIRSYM - SYMbolic CIRcuit processor used to format ASCII text file *.out for CALCSYM. ...

... In accordance with assignment she was sent to Nikolaev branch of the Pulkovo observatory. At the Nikolaev Observatory Eugene Khrutskaya worked with the meridian circle, she made a lot for automatization of observational process, and in 1973 she created the catalog of right ascensions obtained for more than 6000 stars, and she defended her thesis. ... From 2004 to the present, Evgenia Khrutskaya was Head of the Laboratory of astrometry and stellar astronomy. ... Pulkovo observatory . ...

Preface The necessity of the preparation and edition of such intricate publication, that is the printed version offered to the reader, of geoinformation system including the chronological catalogue and evolutionary database of the global tropical cyclogenesis is dictated, in opinion of the authors, whole number of objective circumstances. ... It derivates the serious dissensions in the initial ('raw') information as well as in databases and archives of regional cyclogenesises. ...