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  2. 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. [11] One Venusian year is about 1.92 Venusian solar days. [ 155 ]

  3. Venus may have once been able to support life - AOL

    www.aol.com/news/2016-08-11-venus-may-have-once...

    How fast a planet spins affects its climate; one day on Venus is equal to 117 days on Earth. It used to be thought that this was due to a thick atmosphere, but now scientists say that Venus could ...

  4. Phases of Venus - Wikipedia

    en.wikipedia.org/wiki/Phases_of_Venus

    The orbit of Venus is 224.7 Earth days (7.4 avg. Earth months [30.4 days]). The phases of Venus result from the planet's orbit around the Sun inside the Earth's orbit giving the telescopic observer a sequence of progressive lighting similar in appearance to the Moon's phases. It presents a full image when it is on the opposite side of the Sun.

  5. Planetary hours - Wikipedia

    en.wikipedia.org/wiki/Planetary_hours

    As each day is divided into 24 hours, the first hour of a day is ruled by the planet three places down in the Chaldean order from the planet ruling the first hour of the preceding day; [2] i.e. a day with its first hour ruled by the Sun ("Sunday") is followed by a day with its first hour ruled by the Moon ("Monday"), followed by Mars ("Tuesday ...

  6. Once habitable Venus was likely killed by millennia of ...

    www.aol.com/news/once-habitable-venus-likely...

    The average temperature on Venus is 864 degrees, one day is the equivalent to 117 Earth days, and it has a “crushing carbon dioxide atmosphere 90 times as thick as Earth’s,” NASA says. Even ...

  7. 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 ...

  8. Synodic day - Wikipedia

    en.wikipedia.org/wiki/Synodic_day

    A synodic day (or synodic rotation period or solar day) is the period for a celestial object to rotate once in relation to the star it is orbiting, and is the basis of solar time. The synodic day is distinguished from the sidereal day , which is one complete rotation in relation to distant stars [ 1 ] and is the basis of sidereal time.

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

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

    This is consistent with Venus having had a long-lasting dry surface and never having been habitable," Constantinou added. Venus is the second planet from the sun, and Earth the third.