A grande quantidade de programas astronomicos que estao a surgir destinados aos tablets por vezes provoca nos proprietarios destes novos dispositivos uma certa preocupacao e duvida na hora de adquiri-los.Sendo assim, atendendo a pedidos, semanalmente vou fazer a apresentacao de alguns deles.Cartas Celestes, Planetarios Simulados, Livros, Jogos etc.Programas que contemplam o SISTEMA SOLAR, (LUA, MARTE, TERRA), COSMOLOGIA, ASTROFOTOGRAFIA e varios outros campos da Astronomia Observacional.Ate la... Amigos do blog Ad Astra ...dentro em breve estarei retornando as atividades neste local.Por diversos motivos nao pude continuar com o meu trabalho neste espaco de divulgacao cientifica, espero que logo consiga rever vcs com novidades e mais disponibilidade.Muito obrigado a vcs pelo carinho e amizade, acreditem mesmo nao tendo sido postadas algumas noticias durante longo tempo as visitas esporadicas continuaram...foram mais de 30 mil desde a sua abertura.UM GRANDE ABRACO A TODOS...Vamos em frente.Bernardi http://www.nasa.gov/multimedia/nasatv/index.htmlSTART NOW...NASA TV BROADCASTINGTHE LAST TRANSIT ...IN OUR LIFETIMEBY WIKIPEDIAExternal linksWikimedia Commons has media related to: 2012 Transit of VenusSources To Watch Live Transit Of Venus OnlineExact transit times anywhere.NASA 2012 Transit of Venus Live Webcast and Celebration!NASA Astronomy Picture of the Day live updated image of the sun from the Solar Dynamics ObservatoryAstronomyLive.com Watch Transit of Venus 2012 LIVE Many Live Webcasts / BroadcastsTRANSIT OF VENUS: Live Webcast (Multipoint) by SWAN-IndiaTransit of Venus.orgNational Solar Observatory Transit of Venus June 56 2012Venus Transit 2012 Online SimulatorTransit of Venus viewing guideTransit of Venus: live webcast from Australia, Japan and Norway (GLORIA EU project)The Transit of Venus, by Niruj Mohan Ramanujam, National Centre for Radio Astrophysics, Pune, India. Illustrated by Reshma Barve[hide]File:2012_Venus_Transit.ogvFile:Transit_of_Venus,_2012_Orbital_Paths.ogvThe next transit of Venus, when the planet Venus will appear as a small, dark disk moving across the face of the Sun, will begin at 22:09UTC on 5 June 2012, and will finish at 04:49 UTC on 6 June.[1] Depending on the position of the observer, the exact times can vary by up to 7 minutes. Transits of Venus are among the rarest of predictable celestial phenomena and occur in pairs eight years apart:[2] theprevious transit having been in June 2004, the next pair of transits will not occur until December 2117 and December 2125.VisibilityThe entire transit will be visible from the western Pacific Ocean, northwesternmost North America, northeastern Asia, Japan, thePhilippines, eastern Australia, New Zealand, and high Arctic locations including northernmost Scandinavia, and Greenland.[3] In North America, the Caribbean, and northwestern South America, the beginning of the transit will be visible on 5 or 6 June until sunset. From sunrise on 6 June, the end of the transit will be visible from South Asia, the Middle East, east Africa and most of Europe. It will not be visible from most of South America or western Africa.ResearchThe 2012 transit will give scientists a number of research opportunities. These include:[4][5][6]Measurement of dips in a star's brightness caused by a known planet transiting a known star (the Sun). This will help astronomers when searching for exoplanets. Unlike the 2004 Venus transit, the 2012 transit occurs during an active phase of the 11-year activity cycle of the Sun, and is likely to provide practice