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11F (other)
11F or 11f may refer to: * GCR Class 11F, a class of British 4-4-0 steam locomotive * Kepler-11f, an exoplanet orbiting the star Kepler-11 See also * F11 (other) {{Letter-NumberCombDisambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GCR Class 11F
The Great Central Railway Class 11F or Improved Director Class is a class of 4-4-0 steam locomotive designed by John G. Robinson for passenger work. The London and North Eastern Railway, LNER classified them as Class D11 in 1923. They were based on the earlier GCR Class 11E "Director" class (LNER D10). There were two subclasses: D11/1 were the original GCR engines and D11/2 were those built in 1924 by the LNER to a reduced loading gauge with smaller boiler mountings for hauling passenger trains in Scotland. Operational career The 11F Class was initially used on passenger work on the GCR system, including fast expresses from Sheffield Victoria railway station, Sheffield Victoria to Marylebone railway station, London Marylebone. Later in their careers, they were used on short-distance passenger trains. On lines of the Cheshire Lines Committee during the late 1940s and early 1950s, they hauled expresses between Manchester Central railway station, Manchester Central and Liverpo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kepler-11f
Kepler-11f is an exoplanet (extrasolar planet) discovered in the orbit of the Sun-like star Kepler-11 by NASA's Kepler space telescope, which searches for planets that transit (cross in front of) their host stars. Kepler-11f is the fifth planet from its star, orbiting one quarter of the distance (.25 AU) of the Earth from the Sun every 47 days. It is the furthest of the first five planets in the system. Kepler-11f is the least massive of Kepler-11's six planets, at nearly twice the mass of Earth; it is about 2.6 times the radius of Earth. Along with planets ''d'' and ''e'' and unlike the two inner planets in the system, Kepler-11f has a density lower than that of water and comparable to that of Saturn. This suggests that Kepler-11f has a significant hydrogen–helium atmosphere. The Kepler-11 planets constitute the first system discovered with more than three transiting planets. Kepler-11f was announced to the public on February 2, 2011, after follow-up investigations at several o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
