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Venera 4 (Russian: Венера-4, lit. 'Venus-4'), also designated 4V-1 No.310, was a probe in the Soviet Venera program for the exploration of Venus.The probe comprised a lander, designed to enter the Venusian atmosphere and parachute to the surface, and a carrier/flyby spacecraft, which carried the lander to Venus and served as a communications relay for it.
Full-scale model of the Venera 1 in the Memorial Museum of Cosmonautics. The first Soviet attempt at a flyby probe to Venus was launched on 4 February 1961, but failed to leave Earth orbit.
In October 1983, Venera 15 and Venera 16 entered polar orbits around Venus. The images had a 1–2 kilometres (0.62–1.24 mi) resolution, comparable to those obtained by the best Earth radars. Venera 15 analyzed and mapped the upper atmosphere with an infrared Fourier spectrometer.
Proton-K/D-1: Venera 14 (4V-1M No.761) 4 November 1981: Lavochkin Soviet Union: Flyby/Lander Successful Lander landed on 5 March 1982. Proton-K/D-1: Venera 15 (4V-2 No.860) 2 June 1983: Lavochkin Soviet Union: Orbiter Successful Entered orbit 10 October 1983, operated until July 1984 Proton-K/D-1: Venera 16 (4V-2 No.861) 7 June 1983: Lavochkin ...
Venera 3: USSR: 1 March 1966: Probably around -20° to 20° N, 60° to 80° E: First impact on the surface of another planet. Contact lost before atmospheric entry. Venera 4: USSR: 23 October 1967: Estimated near 1] Crushed by atmospheric pressure before impact. Venera 5: USSR: 16 May 1969
Venus's equator rotates at 6.52 km/h (4.05 mph), whereas Earth's rotates at 1,674.4 km/h (1,040.4 mph). [ note 2 ] [ 153 ] Venus's rotation period measured with Magellan spacecraft data over a 500-day period is smaller than the rotation period measured during the 16-year period between the Magellan spacecraft and Venus Express visits, with a ...
Artificial object Image Country Landing date Landing mass Coordinates Venera 3: Soviet Academy of Sciences Soviet Union March 1, 1966 377 kg (831 lb) [a 1]: Venera 4: Soviet Academy of Sciences Soviet Union: October 18, 1967 : 377 kg (831 lb) : Venera 5: Soviet Academy of Sciences Soviet Union: May 16, 1969 : 410 kg (900 lb) : Venera 6: Soviet Academy of Sciences Soviet Union: May 17, 1969 : ...
Route of Venera 1 on a Soviet stamp. Venera 1 was the second of two attempts to launch a probe to Venus in February 1961, immediately following the launch of its sister ship Venera-1VA No.1, [2] which failed to leave Earth orbit due to the failure of a power transformer. The transformer was wrapped in foil and painted black and white for ...