... 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...

... Academics . Research Innovation . ... University Psychological Counseling . ... Center for International Education . ... Research Institutions . Research Institute of Astronomy . ... About the Department . ... http://www.univer.kharkov.ua/en/departments/physics/chair/astronomy . The Research Institute of Astronomy at V.N. Karazin Kharkiv National University was established in January 2002 on the basis of the University Astronomical Observatory founded as far back as 1808. ...

... RSC Energy General Designer . ... The possibility of continuing the exploitation of the complex in the conditions of the inevitable obsolescence and depreciation of the on-board equipment providing the achievement of the necessary level of safety has been one of the most important and always controlled problems during all the term of exploitation of the complex Mir. ... The technical condition of the complex Mir gives the opportunity to continue its exploitation in a piloted mode till 2002 and more....

Journal of the Amateur Astronomers Association of New York July 2007 Volume 55 Number 7, ISSN 0146-7662 EYEPIECE AAS Meeting Illustrates Changing Nature of Astronomy By Rachel Berger Connolly Standing in the Honolulu Convention Center for my first American Astronomical Society meeting in May, I realized that time and technology does a lot to a field of research so dependent on imaging and automation. ... On July 1, only 47 arcminutes separates Venus from Saturn. ... July's Constellations. ...

... A nasty dispute between the Strategic Defense Initiative Organization (SDIO) and the space-science community was narrowly averted early this year when SDI officials backed down on a planned launch of a satellite with a Russian-built nuclear reactor on board. ... Early Soviet space reactors orbited for two to three months, and two Soviet Topaz 1 experiments, one for six and one 12 months, created radiation belts that disrupted the operation of scientific satellites. ...

. Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . Links . About authors . Russian pages . Last updated 6.04.2016 .

2 June 2006 2007-2009 Work Plan v1 2007-2009 WORK PLAN: TOWARD CONVERGENCE DRAFT 1 for Technical Review COVER NOTE The following is the first version for a three-year plan for GEO, 2007 to 2009. ... Page 1 of 38 2 June 2006 2007-2009 Work Plan v1 ACRONYMS ADM AMDAR AMMA APAN AVHRR CBD CEOS CERN DAPHNE DEM EC EPA EPIDEMIO FAPAR FDSN GEANT GEO GEOSS GIS GMES GOFC-GOLD GOS GPM GSN IGCO IGDDS InSAR INSPIRE IPY ITU MODIS NASA NGO NIEHS SAR SBA SPOT -VGT SST THORPEX UN UNFCCC COP ... Task No. ...