Venera 6

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Venera 6
The Soviet Union 1969 CPA 3821 stamp (Space Probe, Space Capsule and Orbits).jpg
Venera 6
Mission type Venus atmospheric probe
Operator Lavochkin
COSPAR ID 1969-002A
SATCAT no. 3648
Mission duration 127 days (travel), 51 minutes (atmosphere)
Spacecraft properties
Spacecraft 2V (V-69) No.331
Manufacturer Lavochkin
Launch mass 1,130 kilograms (2,490 lb)
Dry mass 410 kilograms (900 lb)
Start of mission
Launch date 10 January 1969, 05:51:52 (1969-01-10UTC05:51:52Z) UTC
Rocket Molniya-M
Launch site Baikonur 1/5
End of mission
Last contact 17 May 1969 (1969-05-18)
Orbital parameters
Reference system Heliocentric
Venus atmospheric probe
Atmospheric entry 17 May 1969, 06:05 UT
Impact site 5°S 23°E / 5°S 23°E / -5; 23

Venera 6 (Russian: Венера-6 meaning Venus 6), manufacturer's designation: 2V (V-69) No.331, was a Soviet spacecraft, launched towards Venus to obtain atmospheric data. It had an on-orbit dry mass of 1,130 kilograms (2,490 lb).

The spacecraft was very similar to Venera 4 although it was of a stronger design. When the atmosphere of Venus was approached, a capsule with a mass of 405 kilograms (893 lb) was jettisoned from the main spacecraft. This capsule contained scientific instruments.

During descent towards the surface of Venus, a parachute opened to slow the rate of descent. For 51 minutes on May 17, 1969, while the capsule was suspended from the parachute, data from the Venusian atmosphere were returned. It landed at 5°S 23°E / 5°S 23°E / -5; 23.

The spacecraft also carried a medallion bearing the State Coat of Arms of the U.S.S.R. and a bas-relief of V. I. Lenin to the night side of Venus.

Given the results from Venera 4, the Venera 5 and Venera 6 landers contained new chemical analysis experiments tuned to provide more precise measurements of the atmosphere's components. Knowing the atmosphere was extremely dense, the parachutes were also made smaller so the capsule would reach its full crush depth before running out of power (as Venera-4 had done).



  • Instrument COP-18-3M for the study of cosmic particle streams;
  • LA-2U device for determining the distribution of oxygen and hydrogen in the planet's atmosphere.


  • Pressure sensors MDDA-A type to measure atmospheric pressure in the range from 100 to 30,000 mm Hg Art. (0,13-40 atm);
  • G-8 gas analyzers to determine the chemical composition of the atmosphere;
  • VIP device for determining the density of the atmosphere at an altitude;
  • FD-69 for illumination measurements in the atmosphere;
  • EC-164D to determine the temperature at the height of the atmosphere.

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