J/AstL/vol/page SAI Open Clusters Catalog (Glushkova+, 2009) ================================================================================ Automated search for star clusters in large multiband surveys. ... Color excesses E(B-V), distance moduli and ages were determined for 141 new and 27 known, but poorly studied clusters. We present the Sternberg Astronomical Institute Open Clusters Catalog (SAI OCL Catalog) of coordinates, diameters and main physical parameters of these clusters. ...

Borodkova and G.N. Zastenker Influence of the large and sharp solar wind pressure pulses on the magnetosphere: several case studies Space Research Institute RAS, Moscow , RUSSIA M. Dolgonosov (1), G. Zimbardo (2), A. Greco (2), and L. Zelenyi (1) Influence of the perpendicular electric field on ion beamlets in the magnetotail (1) Space Research Institute of RAS, Space Physics , Moscow , Russian ...

... 000, 1­12 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...

... Our scientific interest is an accuracy of asteroid CCD observations obtained by amateurs and professional astronomers all over in the World. ... These data help us to analyse an accuracy of real CCD positions in the MPC Database. ... Do you test your observations of the small Solar System bodies permanently before sending them to the International Minor Planets' Center? ... Do you know a real accuracy of your positional CCD-observations in comparison with the other observatories' one ? ...

Меркурий . ... Фотографии . ... Страница: История "Mariner-10" , КА "Messenger" NASA , 1-я встреча Messenger , Итог 1-я встречи , 2-я встреча Messenger , 3-я встреча Messenger , Выход на орбиту , Полгода на Меркурии , Год на орбите , Быть или не быть? ... Космический аппарат "MESSENGER" . ... Отдельная страница/ссылка на новость: Карта Бетховена, Меркурий . Краткое описание картинки: . ... Обилие калия и тория на поверхности Меркурия установлено гамма-спектрометром космического аппарата MESSENGER. ...

Statistics of sunspot activity . ... The solar regions . ... The small bipolar group was noticed at the 24th parallel of the Northern hemisphere since 18.09 to 22.09 near the Western limb. ... The fine bipolar sunspots were observed at the middle latitudes of the Northern hemisphere since 24.09 to 30.09 to the West from the central meridian. ... The small bipolar sunspots were observed at the 11th parallel of the Southern hemisphere since 4.10 to 12.10 in the Western part of the Sun disc. ...

... Путеводитель астронома по Inter Net. (9 лучших линков в интернете на каждую астрономическую тему) . ... Астрономические данные в Интернете. ... Официальные астрономические учреждения России. ... Лучшие астрономические персональные страницы - AstroTop. ... Приведу некоторые www-страницы астрономических учреждений России, которые могут послужить хорошей отправной точкой в поиске нужной Вам информации по астрономии. ... Недаром на данный ресурс есть ссылки со многих астрономических страниц России. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Phase range for plots: -0.5 to 1.0 0.0 to 2.0 0.0 to 1.0 . ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... Two period search methods are currently implemented. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . ...