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. ...

... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

Main News Phones Research area Brief history Institute Structure Experimental Base Observational data English/Russian . research on the site(Google) . ... 7(4112)390400 . Fax: . 7(4112)390450 . ... Division of Aeronomy . ... Phone: +7(4112) 39-04-48 . Fax: +7(4112) 39-04-50 . ... solar-terrestrial physics . magnetosphere physics . ... Laboratories: . Geomagnetism Laboratory . Ionosphere Physics Laboratory . ... Ionosphere and Magnetosphere Radioemission Laboratory . ...

... 000, 1­13 (2010) Printed 21 September 2011 A (MN L TEX style file v2.2) A universal ultraviolet-optical colour­colour­magnitude relation of galaxies I1gor V. Chilingarian1,2, and Ivan Yu. ... Received 2011 Sep 15; in original form 2011 Feb 6 ABSTRACT The bimodal galaxy distribution in the optical colour­magnitude diagram (CMD) comprises a narrow "red sequence" populated mostly by early-type galaxies and a broad "blue cloud" dominated by star-forming systems. ...

... GCR and SCR are primary cosmic rays. 10-15 years after the discovery of cosmic radiation (1919) there emerged two main avenues of investigation in the physics of cosmic rays (CR): 1) nuclear - elucidation of the origin of elementary particles and nuclear interactions; and 2) astrophysical (space physics) - solution of the problem related to the origin and variations (changes in intensity) of CR. ... Besides, the CR flux in interplanetary space is, strictly speaking, not isotropic. ...

INTERNATIONAL EXHIBITION . Space technologies - to serve the society" Kyiv, Khreschatik street, 2 24-28 August 2001 . Exhibition Official Site Site Map Eng Rus Ukr . ... Are You going to visit space exhibition in Kiev? ... I'll try . ... No, I'll follow the site . ... Instrument-Making Research Technological Institute . ... 0572) 23-11-80 . ... Scope of business: technological support for space equipment designing, development and manufacturing of processing equipment and electronic devices . ...

The Official Publication of the Amateur Astronomers Association of Princeton Director Ludy D'Angelo 609-882-9336 ludy@princetonastronomy.org Assistant Director Jeff Bernardis ... .com Editor Michael Wright (609) 371-5668 editors@princetonastronomy.org Also online at princetonastronomy.wordpress.com Volume 40 April 2011 Number 4 From the Director What does it mean to do astronomy ... It takes time. ... This second installment covers the telescope itself and its maker, Henry Fitz. ...

... B.V. Somov . head of the department . ... room 80 . ... senior research felow . ... research felow . ... research fellow . ... Our department performes the following most perspective studies: . Special analytical and numerical experimental investigations of the solar plasma involved in the magnetic reconnection process at the Sun. ... Head of the seminar: Prof. B.V. Somov. ... 27 September 2013 The Solar Physics Department was visited by journalists of the leading Russian TV channel "Vesti-1". ...

Новости компании PENTAR . ... Цена: 23 590 руб. 24 090 руб. 31 августа 2012 . Передовая разработка Meade Instruments - LX600 со встроенной системой гидирования StarLock уже в России! ... При разработке телескопов серии LX600 за основу была взята ключевая концепция Meade Instruments - создание максимально дружественного пользователю решения премиум-класса, с возможностью усовершенствования для профессиональных занятий астрофотографией. ... 16 августа 2012 . PENTAX K-30 в России! . ... 2012 . ...

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 . ...