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      • Thanks to observations conducted by a team led from UCLA, who repeatedly bounced radar off the planet’s surface for the past 15 years, scientists now know the precise length of a day on Venus, the tilt of its axis, and the size of its core.
      www.universetoday.com/151056/how-long-is-a-day-on-venus-we-finally-know-the-exact-answer/

      How Long is a Day on Venus? We Finally Know the Exact Answer

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  3. www.universetoday.com › 151056How Long is a Day on Venus? We Finally Know the Exact Answer

    May 4, 2021 · Thanks to observations conducted by a team led from UCLA, who repeatedly bounced radar off the planet’s surface for the past 15 years, scientists now know the precise length of a day on Venus,...

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      Continue reading “How Long is a Day on Venus? We Finally...

  4. www.universetoday.com › how-long-is-a-day-on-venusHow Long is a Day on Venus? - Universe Today

    • Sidereal vs. Solar
    • Axial Tilt and Temperatures
    • Weather Patterns

    Naturally, some clarification is necessary when addressing the question of how long a day lasts. For starters, one must distinguish between a sidereal day and a solar day. A sidereal day is the time it takes for a planet to complete a single rotation on its axis. On the other hand, a solar day is the time it takes for the Sun to return to the same ...

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    Unlike Earth or Mars, Venus has a very low axial tilt – just 2.64° relative to the ecliptic. In fact, it’s axial tilt is the one of the lowest in the Solar System, second only to Mercury (which has an extremely low tilt of 0.03°). Combined with its slow rotational period and dense atmosphere, this results in the planet being effectively isothermal,...

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    It is a well-known fact that Venus’ atmosphere is incredibly dense. In fact, the mass of Venus atmosphere is 93 times that of Earth’s, and the air pressure at the surface is estimated to be as high as 92 bar – i.e. 92 times that of Earth’s at sea level. If it were possible for a human being to stand on the surface of Venus, they would be crushed by...

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  5. phys.org › news › 2021-04-day-venus-scientistsHow long is a day on Venus? Scientists crack mysteries of our ...

    Apr 29, 2021 · The new radar measurements show that an average day on Venus lasts 243.0226 Earth days—roughly two-thirds of an Earth year. What's more, the rotation rate of Venus is always changing: A...

    • Christopher Crockett

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  7. www.discovermagazine.com › the-sciences › how-longHow Long is a Day on Venus? The Answer Keeps Changing

    Jan 3, 2020 · In the 1960s, scientists used radar to determine that the planet spins backward compared to its orbit, which astronomers call retrograde rotation. Over the next 20 years, astronomers kept tracking Venus’ features in an effort to pin down the length of a day.

  8. www.college.ucla.edu › 2021/04/29 › how-long-is-aHow long is a day on Venus? Scientists crack mysteries of our ...

    Apr 29, 2021 · The new radar measurements show that an average day on Venus lasts 243.0226 Earth days — roughly two-thirds of an Earth year. What’s more, the rotation rate of Venus is always changing: A value measured at one time will be a bit larger or smaller than a previous value.

  9. science.nasa.gov › venus › venus-factsVenus Facts - Science@NASA

    For one thing, your “day” would be 243 Earth days long – longer even than a Venus year (one trip around the Sun), which takes only 225 Earth days. For another, because of the planet's extremely slow rotation, sunrise to sunset would take 117 Earth days.

  10. earthsky.org › space › venus-length-of-day-spin-rateThe length of a day on Venus is always changing | Space ...

    May 5, 2021 · A day on Venus – a single spin of the planet on its axis – is equal to approximately 243 Earth-days. What’s new is that the length of a Venus-day doesn’t stay fixed.