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Astra (satellites)
Astra is the brand name for a number of geostationary communication satellites, both individually and as a group, which are owned and operated by SES S.A., a global satellite operator based in Betzdorf, in eastern Luxembourg. The name is also used to describe the pan-European broadcasting system provided by these satellites, the channels carried on them, and even the reception equipment. At the time of the launch of the first Astra satellite, Astra 1A in 1988, the satellite's operator was known as Société Européenne des Satellites. In 2001 SES Astra, a newly formed subsidiary of SES, operated the Astra satellites and in September 2011, SES Astra was consolidated back into the parent company, which by this time also operated other satellite families such as AMC, and NSS. Astra satellites broadcast 2600 digital television channels (675 in high definition) via five main satellite orbital positions to households across Asia, Australia, Africa, Americas, Europe, New Zea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astra Logo
Astra may refer to: People * Astra (name) Places * Astra, Chubut, a village in Argentina * Astra (Isauria), a town of ancient Isauria, now in Turkey * Astra, one suggested name for a hypothetical fifth planet that became the asteroid belt Entertainment * Astra (Marvel Comics), the name of two otherwise unrelated Marvel Comics characters from 1977 and 1999, respectively * Astra (DC Comics) * ''Astra'' (film), a 2012 Bengali film * Australian Subscription Television and Radio Association * ASTRA Awards, annual awards presented by the Australian subscription television industry * Astra, a character in the TV series '' Ultraman Leo'' Music * Astra Chamber Music Society, a Melbourne, Australia concert organization, formed in 1951 * Astra (band), an American psychedelic and progressive rock band * ''Astra'' (album), a 1985 release by Asia * ''Astra'', a 1990 composition by Charles Wuorinen Sports * FC Astra Giurgiu, a Romanian football club, currently playing in Liga I * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astra 5°E
Astra 5°E is the name for the Astra communications satellites co-located at the 5° east position in the Clarke Belt which are owned and operated by SES based in Betzdorf, Luxembourg. 5° east is one of the major TV satellite positions serving Europe (the others being at 19.2° east, 28.2° east, 13° east, and 23.5° east). The Astra satellites at 5° east provide for services downlinking to the Nordic countries, Eastern Europe and sub-Saharan Africa in the 11.70 GHz-12.75 GHz range of the Ku band, and at present the Astra 4A and the SES-5 are regularly operational at this position. Satellites at 5°E were originally operated by Swedish Space Corporation (SSC), and then Nordic Satellite AB (NSAB, itself 50% owned by SSC) before SES took full control of the position and the satellites in 2010, renaming the Sirius 4 satellite to Astra 4A and later adding its own Astra 1E to the group followed by the SES-5. Satellite craft in use Current * Astra 4A (previously ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Astra may refer to: People * Astra (name) Places * Astra, Chubut, a village in Argentina * Astra (Isauria), a town of ancient Isauria, now in Turkey * Astra, one suggested name for a hypothetical fifth planet that became the asteroid belt Entertainment * Astra (Marvel Comics), the name of two otherwise unrelated Marvel Comics characters from 1977 and 1999, respectively * Astra (DC Comics) * ''Astra'' (film), a 2012 Bengali film * Australian Subscription Television and Radio Association * ASTRA Awards, annual awards presented by the Australian subscription television industry * Astra, a character in the TV series '' Ultraman Leo'' Music * Astra Chamber Music Society, a Melbourne, Australia concert organization, formed in 1951 * Astra (band), an American psychedelic and progressive rock band * ''Astra'' (album), a 1985 release by Asia * ''Astra'', a 1990 composition by Charles Wuorinen Sports * FC Astra Giurgiu, a Romanian football club, currently playing in Liga I * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Astra may refer to: People * Astra (name) Places * Astra, Chubut, a village in Argentina * Astra (Isauria), a town of ancient Isauria, now in Turkey * Astra, one suggested name for a hypothetical fifth planet that became the asteroid belt Entertainment * Astra (Marvel Comics), the name of two otherwise unrelated Marvel Comics characters from 1977 and 1999, respectively * Astra (DC Comics) * ''Astra'' (film), a 2012 Bengali film * Australian Subscription Television and Radio Association * ASTRA Awards, annual awards presented by the Australian subscription television industry * Astra, a character in the TV series ''Ultraman Leo'' Music * Astra Chamber Music Society, a Melbourne, Australia concert organization, formed in 1951 * Astra (band), an American psychedelic and progressive rock band * ''Astra'' (album), a 1985 release by Asia * ''Astra'', a 1990 composition by Charles Wuorinen Sports * FC Astra Giurgiu, a Romanian football club, currently playing in Liga I * As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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Astra may refer to: People * Astra (name) Places * Astra, Chubut, a village in Argentina * Astra (Isauria), a town of ancient Isauria, now in Turkey * Astra, one suggested name for a hypothetical fifth planet that became the asteroid belt Entertainment * Astra (Marvel Comics), the name of two otherwise unrelated Marvel Comics characters from 1977 and 1999, respectively * Astra (DC Comics) * ''Astra'' (film), a 2012 Bengali film * Australian Subscription Television and Radio Association * ASTRA Awards, annual awards presented by the Australian subscription television industry * Astra, a character in the TV series '' Ultraman Leo'' Music * Astra Chamber Music Society, a Melbourne, Australia concert organization, formed in 1951 * Astra (band), an American psychedelic and progressive rock band * ''Astra'' (album), a 1985 release by Asia * ''Astra'', a 1990 composition by Charles Wuorinen Sports * FC Astra Giurgiu, a Romanian football club, currently playing in Liga I * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Above (book)
''High Above - The untold story of Astra, Europe's leading satellite company'' is a book describing the development of the European satellite provider SES, published in 2010 on the occasion of the company's 25th anniversary by Broadgate Publications in Richmond, London, United Kingdom. It is a large "coffee table" style book (32 x 24 cm) of 239 pages with hundreds of photographs. Outline ''High Above'' tells the story of Société Européenne des Satellites, and how the company managed to overcome technical, political, and commercial obstacles to become one of the world's leading satellite operators. It is the story of the Luxembourg-based satellite provider and the growth of European satellite television, the history of recent developments of the European television and media industry, and their context in the wider development of television and space technology. ''High Above'' chronicles the emergence of television as the dominant information and entertainment medi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid Broadcast Broadband TV
Hybrid Broadcast Broadband TV (HbbTV) is both an industry standard ( European Telecommunications Standards Institute (ETSI) TS 102 796) and promotional initiative for hybrid digital TV to harmonise the broadcast, Internet Protocol Television (IPTV), and broadband delivery of entertainment to the end consumer through connected TVs ( smart TVs) and set-top boxes. The HbbTV Association, comprising digital broadcasting and Internet industry companies, has established a standard for the delivery of broadcast TV and broadband TV to the home, through a single user interface, creating an open platform as an alternative to proprietary technologies. Products and services using the HbbTV standard can operate over different broadcasting technologies, such as satellite, cable, or terrestrial networks. HbbTV can show digital television content from a number of different sources including traditional broadcast TV, Internet, and connected devices in the home. To watch hybrid digital TV, co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3D Television
3D television (3DTV) is television that conveys depth perception to the viewer by employing techniques such as stereoscopic display, multi-view display, 2D-plus-depth, or any other form of 3D display. Most modern 3D television sets use an active shutter 3D system or a polarized 3D system, and some are autostereoscopic without the need of glasses. As of 2017, most 3D TV sets and services are no longer available from manufacturers. History The stereoscope was first invented by Sir Charles Wheatstone in 1838.Contributions to the Physiology of Vision.—Part the First. On some remarkable, and hitherto unobserved, Phenomena of Binocular Vision. By CHARLES WHEATSTONE, F.R.S., Professor of Experimental Philosophy in King's College, LondonStereoscopy.com It showed that when two pictures are viewed stereoscopically, they are combined by the brain to produce 3D depth perception. The stereoscope was improved by Louis Jules Duboscq, and a famous picture of Queen Victoria was di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Television
Digital television (DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color television in the 1950s. Modern digital television is transmitted in high-definition television (HDTV) with greater resolution than analog TV. It typically uses a widescreen aspect ratio (commonly 16:9) in contrast to the narrower format of analog TV. It makes more economical use of scarce radio spectrum space; it can transmit up to seven channels in the same bandwidth as a single analog channel, and provides many new features that analog television cannot. A transition from analog to digital broadcasting began around 2000. Different digital television broadcasting standards have been adopted in different parts of the world; below are the more wid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Africa
North Africa, or Northern Africa is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in the west, to Egypt's Suez Canal. Varying sources limit it to the countries of Algeria, Libya, Morocco, and Tunisia, a region that was known by the French during colonial times as "''Afrique du Nord''" and is known by Arabs as the Maghreb ("West", ''The western part of Arab World''). The United Nations definition includes Morocco, Algeria, Tunisia, Libya, Egypt, Sudan, and the Western Sahara, the territory disputed between Morocco and the Sahrawi Republic. The African Union definition includes the Western Sahara and Mauritania but not Sudan. When used in the term Middle East and North Africa (MENA), it often refers only to the countries of the Maghreb. North Africa includes the Spanish cities of Ceuta and Melilla, and plazas de so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle East
The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabia (including the Arabian Peninsula and Bahrain), Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (European part of Turkey), Egypt, Iran, the Levant (including Ash-Shām and Cyprus), Mesopotamia (modern-day Iraq), and the Socotra Archipelago (a part of Yemen). The term came into widespread usage as a replacement of the term Near East (as opposed to the Far East) beginning in the early 20th century. The term "Middle East" has led to some confusion over its changing definitions, and has been viewed by some to be discriminatory or too Eurocentric. The region includes the vast majority of the territories included in the closely associated definition of Western Asia (including Iran), but without the South Caucasus, and additionally includes all of Egypt (not just the Sinai Region) and all of Turkey (not just the part barring East Thrace). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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