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  2. Orbit of Venus - Wikipedia

    en.wikipedia.org/wiki/Orbit_of_Venus

    [1] [2] The low eccentricity and comparatively small size of its orbit give Venus the least range in distance between perihelion and aphelion of the planets: 1.46 million km. The planet orbits the Sun once every 225 days [3] and travels 4.54 au (679,000,000 km; 422,000,000 mi) in doing so, [4] giving an average orbital speed of 35 km/s (78,000 ...

  3. Venus - Wikipedia

    en.wikipedia.org/wiki/Venus

    Because of the retrograde rotation, the length of a solar day on Venus is significantly shorter than the sidereal day, at 116.75 Earth days (making the Venusian solar day shorter than Mercury's 176 Earth days — the 116-day figure is close to the average number of days it takes Mercury to slip underneath the Earth in its orbit [the number of ...

  4. Transit of Venus - Wikipedia

    en.wikipedia.org/wiki/Transit_of_Venus

    His observations allowed him to make a well-informed guess for the diameter of Venus and an estimate of the mean distance between the Earth and the Sun (59.4 million mi (95.6 million km; 0.639 AU)). His observations were not published until 1661, well after Horrocks's death.

  5. Astronomical unit - Wikipedia

    en.wikipedia.org/wiki/Astronomical_unit

    Radius of the Sun (695 500 km, 432 450 mi, a hundred times the radius of Earth or ten times the average radius of Jupiter) – Light-minute: 0.12 – Distance light travels in one minute – Mercury: 0.39 – Average distance from the Sun – Venus: 0.72 – Average distance from the Sun – Earth: 1.00 –

  6. Sidereal time - Wikipedia

    en.wikipedia.org/wiki/Sidereal_time

    Mercury's sidereal day is about two-thirds of its orbital period, so by the prograde formula its solar day lasts for two revolutions around the Sun – three times as long as its sidereal day. Venus rotates retrograde with a sidereal day lasting about 243.0 Earth days, or about 1.08 times its orbital period of 224.7 Earth days; hence by the ...

  7. How climate change made Venus impossible to inhabit - AOL

    www.aol.com/climate-change-made-venus-impossible...

    Venus currently has a surface temperature of 450℃ (the temperature of an oven’s self-cleaning cycle) and an atmosphere dominated by carbon dioxide (96%) with a density 90 times that of Earth’s.

  8. Did Venus ever have oceans? Scientists have an answer - AOL

    www.aol.com/news/did-venus-ever-oceans...

    Venus is the second planet from the sun, and Earth the third. ... The Venusian diameter of about 7,500 miles (12,000 km) is just a tad smaller than Earth's 7,900 miles (12,750 km).

  9. 2004 transit of Venus - Wikipedia

    en.wikipedia.org/wiki/2004_transit_of_Venus

    The participants made a measurement of the astronomical unit (AU) of 149 608 708 km ± 11 835 km [1] which had only a 0.007% difference to the accepted value. Visibility [ edit ]