The Second U.S. Naval Observatory CCD Astrograph Catalog ( UCAC2 ) Table of Contents 1) Introduction 2) Summary of the Project a) Observations and Instrumentation b) Reductions of UCAC Observations c) Computation of Proper Motions 3) Properties of the Catalog and Important Notes For the User a) Sky Coverage b) Completeness c) Positions, Proper Motions and Error Calculations d) UCAC2 Magnitudes e) 2MASS Photometry f) Non-stellar ... All stars in the UCAC2 have proper motions. ...

... Тhis new concept touches our simple lives, yet for those intrigued by the natural sciences, especially experts deeply engaged in the 'eternal' questions of general geology and astronomy, it is all the more fascinating. The problems to be faced by any theory for the formation of the Solar System . Any theory has to account for certain rather tricky facts about the Solar System. These are in addition to the obvious facts that the Sun is at the centre with the planets in orbit around it. ...

Journal of Atmospheric and Solar-Terrestrial Physics Manuscript Draft Manuscript Number: ATP1021 Title: comment on the paper by Dalin , Pertsev and Romejko Significance of lunar impact on noctilucent clouds ( revised version) Article Type: Research Paper Section/Category: Keywords: Noctilucent clouds moon influence mesosphere Manuscript Region of Origin: Abstract: a critical review of the paper by Dalin , ... Reference: Dalin, P.A., N.N. Pertsev, V.A. Romejko. ...

... This is commonly referred to as CPM (cost per thousand impressions).We pay you a percentage of revenues for the ads that you and your friends view with Harry, based on current CPM rates.You will get 75% of total revenue generated from your viewing.. ... REMEMBER: for every one hour the program on Your screen You'll get paid $0.50. And when You recommend those program to Your friends, reffering to Your personal ID, You'll get paid $0.10 for every hour the program open on Your's friends computer. ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

H 2 O maser sources spectral data at 22 GHz. I began this project 27.08.1998 for displaying spectral data at 22 GHz of water maser. While data will concerning in base Puschino many year (1979-1998 yy) regular observations of sample of these sources. Sources . R.a. (1950.0) . ... The figures with many years spectral data (day-month-year) . The behavior of flux . The behavior of spectral components . ... All spectra 1981-94 . ... The some spectral component: many year behavior . ...

... Конференц?я "Р?внодення 2016". ... Киевский клуб любителей астрономии "Астрополис" > . ... Астрософт (Модератор: tlgleonid ) > . Astronomical Net of Ukraine . ... 10 Апрель 2016, 04:19:28 . ... Новости . ... Бердянское общество любителей астрономии "ОРИОН" . ... Одесское общество любителей астрономии ?АСТРОДЕС? Портал белорусских любителей астрономии - BelAstro.Net . ... предыдущая тема следующая тема . ... 21 Декабрь 2011, 19:30:05 ? В общем рекомендую любителям астрономии ценный ресурс! ...

... Солнечные затмения 2004-2024 . ... Short report about viewing of Venus Transit at 8 June 2004. ... The same situation was at Berdyansk at the June, 8, 2004, when Venus Transit occur. ... At the photo below, you can see how cloudy it was when the transit began. ... You can see it at the picture 1. ... I would like to thank Illya Pustovit, who kindly gave me a permission to use his digital camera for taking pictures of this Venus Transit and helped me a lot with working on gotten pictures. ...

... Julian Date Flux Densities (mJy) Julian Date Flux Densities (mJy) 2440000:0 A1 A2 B C 2440000:0 A1 A2 B C 8930.9968 153.8 134.6 59.8 22.6 9021.6846 154.0 137.0 59.0 22.9 8939.7717 163.7 146.0 66.1 22.9 9024.6766 151.4 134.6 58.4 22.1 8940.8936 153.2 135.8 59.2 22.6 9030.5334 156.7 139.1 59.0 22.4 8944.7380 161.7 142.2 63.7 23.1 9032.6650 151.8 136.5 57.7 22.6 8951.8637 148.4 131.3 58.3 21.7 9036.7067 155.1 137.1 58.8 ...

... Наши наблюдения кометы Хейла-Боппа (C/1995 O1). ... Достаточно большая серия наблюдений (более 100 изображений кометы) была выполнена до ноября 1996 года, когда Земля вновь заняла неудобное для наблюдений кометы положение на орбите. ... На серии наших снимков, еще в августе 1996г. отчетливо видны пять газовых струй, бьющих из ядра кометы. ... Вновь приступить к наблюдениям кометы Хейла-Боппа нам удалось только после окончания морозов и сезона ненастной погоды, в марте 1997 года. ... Кометы | ...

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...

... Lunar CRater Observation and Sensing Satellite ? название автоматической межпланетной станции НАСА, запущенной 18 июня 2009 года в 21:32:33 UTC вместе с Lunar Reconnaissance Orbiter к Луне. ... космический телескоп Хаббл и европейский спутник 'Odin'. ... 1М (космический аппарат) . ... 2МВ (космический аппарат) . 3МВ (космический аппарат) . ... AGILE (космический аппарат) . ... Lunar Crater Observation and Sensing Satellite . ... Прогресс М-01М . ... Союз (космический корабль) . ...

... ISC Kosmotras . Top Management Founder of ISC Kosmotras - Dr. Vladimir A. Andreev News . ... Dr. Vladimir A. Andreev, Founder of ISC Kosmotras, Member of the Board . ... Peaceful and rational use of RS-20 ICBMs after their withdrawal from service with the Russian Ministry of Defense (MoD) has been in the main focus of Dr. Andreev s attention since early 1990s. Dr. Andreev is one of the founders of an international cooperation program and process called the Dnepr Program . ... Dnepr Program . ...

... Chilingarian, I., Melchior, A.-L., Zolotukhin, I. 2010: Analytical approximations of K -corrections in optical and near-infrared bands , accepted to MNRAS (arXiv:1002.2360) . ... K-Corrections in the optical and near-infrared , Analytical approximations of K-corrections in optical and near-infrared bands , photometric properties of galaxies , K-corrections approximation redshift and one observed colour , transform observed spectral energy distributions (SED) , software to estimate K-corrections , ...

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 . ...