... These Facts and Questions pages mainly tell you how to use the Aberrator-interface and also explain the nature of the aberrations. ... Airy disc: the brightest spot of light when you look at a star in focus. This disc can contain a maximum of 84% of all the light that arrives from a star (perfect refractor telescope). MCT : Maksutov-Cassegrain telescope. A closed-tube mirror-telescope with a secondary obstruction. Less common than the SCT, this telescope uses a corrector (real glass). ...

ON THE CORRELATION BETWEEN SPECTRA OF SOLAR MICROWAVE BURSTS . AND SPECTRA OF PROTON FLUXES NEAR EARTH . ... which is equivalent to the power-law index of the integral energy spectrum of protons registered near the Earth orbit in a range of 10-100 MeV , on the one hand, and parameters of microwave bursts such as a ratio of peak fluxes at two frequencies (e.g., 9 and 15 GHz) and a microwave peak frequency f m as well. ...

The States participating in this Declaration, . ... Conscious of the question of whether and how Humankind should send a communication to extraterrestrial intelligence, . ... International consultations should be initiated to consider the question of sending communications to extraterrestrial civilizations. ... No communication to extraterrestrial intelligence should be sent by any State until appropriate international consultations have taken place. ...

FAQ по телескопам . ... A1: ( Телескопы для любителей астpономии , Л.Л.Сикоpук) Телескоп диаметpом 50 мм позволит увидеть кpатеpы на Луне, пятна на Солнце, пояса на диске Юпитеpа и четыpе его кpупных спутника, фазы Венеpы, наличие колец Сатуpна, компоненты двойных звезд с pасстоянием между ними 2,5 секунды дуги (2,5 ; pазpешающая сила ), слабые звезды до 10-й звездной величины (10m; пpоницающая ... Диаметp объектива 100мм, фокусное pасстояние 1000мм, увеличение 30-350кpат. ...

. Welcome to . Comet . Web server of . RadioAstronomy . Department . Sternberg Astronomical Institute . Moscow University . Questions and comments send to martis @ sai.msu.ru .

... As the outcome of the meeting we expect some identification of joint research projects which would benefit Glasgow-Pulkovo collaboration and FP-7 "RadioSun" staff exchange scheme. Where : The workshop will be hosted at Pulkovo Observatory, Saint Petersburg. When : August 11-15, 2014 . ... This is the format of the workshop we had for Glasgow-Meudon collaboration ) We anticipate that each speaker will have 45 mins, which includes 30 mins to present material and 15 minutes for questions. ...

Restait Рњ traiter la question des poudres. ... Ces faits ne peuvent Р?tre mis en doute, car je les ai relevР?s moi-mР?me dans les procРеs-verbaux du ComitР? d'artillerie. в?' Parfaitement, rР?pondit le gР?nР?ral. в?' Eh bien! reprit le major, voici la consР?quence Рњ tirer de ces chiffres, c' est que la quantitР? de poudre n'augmente pas avec le poids du boulet: en effet, s'il fallait seize livres de poudre pour un boulet de vingt-quatre; en d'autres termes, si, dans ...

If you can see this, it means that the installation of the Russian Apache web server software on this system was successful. ... This page is here because the site administrator has changed the configuration of this web server. ... The Apache Software Foundation, which wrote the web server software this site administrator is using, has nothing to do with maintaining this site and cannot help resolve configuration issues. ... You are free to use the image below on an Apache-powered web server. ...

. Home . Structure of Data . Description . Catalog . Publications . VO . ЮБ 2000 . 11:14:20.2 . ЮД 2000 . -57:33:04 . l . 290.172 . b . 2.895 . diameter . 14.0' . (m - M) 0 . 11.4 0.05 . distance . 1900 50 pc . E(B - V) . 0.08 0.01 . log(t) . 9.65 0.05 . (J, J-H) isochrone VOTable . 2MASS data VOTable . Developed by the Team . Send us your questions or feedback

. of Lomonosov Moscow State University, . Russia . GCVS Research Group . Catalogues of Variable Stars . Future Prospects of Variable-Star Catalogues . B.V. Kukarkin Centenary Conference: Variable Stars, the Galactic Halo and Galaxy formation (VS-Halo) . What's new . Recent publications . Digitization of Moscow Plate Archive . The "Peremennye Zvezdy" (Variable Stars) journal . Send questions a