... Four planets shine in the twilight sky above them. Spread out near the plane of the ecliptic are Mercury , Venus , Mars , and Saturn , along with bright Regulus , alpha star of the constellation Leo. ... In fact, these four planets still shine in western skies at sunset, with Venus, Mars, and Saturn grouped much more tightly this weekend and in early August . By August 12 , a young crescent Moon will join the four planet sunset. ... July . ... Publications with keywords: ecliptic - planets . ...

Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

... Tonight's Sky . ... The Magazine . News . Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... expansion rate . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 16 - 22.04.2012, Forecast on 23 - 30.04.2012, КЭРРИНГТОНОВСКИЕ ОБОРОТЫ 2122, 2123 (31,93.03, 28,19.04.2012) SUNSPOT ACTIVITY OF THE PAST PERIOD GRADUALLY INCREASED FROM THE AVE- RAGE TO HIGH AND AGAIN TO AVERAGE OF LEVELS. ... NEXT WEEK THE SUNSPOT ACTIVITY IS EXPECTED TO BE LOW. THE CALCULATED MOST LIKELY WEEKLY AVERAGE VALUE OF SUNSPOT NUMBER IN THE INTERNATIO- NAL SYSTEM FOR THE NEXT WEEK W=060+20/-10. ...

... Posts tagged ?Earth? ... Posted by vlk . There is a new report from Bernabei et al. ( arXiv:0804.2741 ) of the direct detection of the effects of Dark Matter that is causing a lot of buzz. ... Category: arXiv , News | 2 Comments . ... Tags: astrostatistics , curve fitting , Earth , ellipses , epicycles , Galileo , history , inference , iTunesU , Kepler , Mars , Owen Gingerich , planetary motion , Ptolemy , Quotes . ... Entries RSS . Comments RSS . ... Entries (RSS) and Comments (RSS) . ...

... SSAU History . SSAU roadmap . ... SSAU scientists Sergey Zvonov, Engineer of Software Innovation Management, and Andrey Gavrilov, Head of Administration on Scientific Personnel Training, presented developments of the University at the International Exhibition- Seoul International Fair (SIIF-2014). International Forum was held in Seoul (South Korea) from November 28 to December 1. ... SSAU experts presented four developments that aroused a great interest among the exposition visitors. ...

Gravitational four-fermion interaction and dynamics of the early Universe I.B. Khriplovich, A.S. Rudenko Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russia October 2013 According to common beliefs, present expansion of Universe is result of Big Bang. Quite popular idea is that this expansion had been preceded by compression with subsequent Big Bounce. ... Its energy density is = n4/3, is numerical factor, n1/3 is typical energy per particle. ... Solution of FLRW equations. ...

... Future seminars . P a s t seminars . ... Hints of the fourth planet in the ? ... This star is currently believed to host 3 giant planets having orbital periods about 4.6 days, 240 days и 1280 days [1]. ... Therefore, this seasonic periodicity is caused, most probably, by systematic errors. ... Taking into account the requirement of the dynamical stability of the system allows us to mark a few regions in the parameter space, where the orbit of the putative fourth planet (e) can be located. ...

... Report on Cosmic Call 1999 . ... Cosmic Call Sessions . ... This Report outlines methodology, hard- and software, which were developed to transmit first public Interstellar messages from Evpatoria Deep Space Center (EDSC), and describes four Cosmic Call Sessions, which were fulfilled in EDSC on May 24 and June 30 - July 1, 1999. ... Each Cosmic Call consists of two parts. ... Dutil Message, . ... The software for gathering all messages and creating the Cosmic Call stream, was written on C language. ...