When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Rotation period (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Rotation_period_(astronomy)

    Rotation period with respect to distant stars, the sidereal rotation period (compared to Earth's mean Solar days) Synodic rotation period (mean Solar day) Apparent rotational period viewed from Earth Sun [i] 25.379995 days (Carrington rotation) 35 days (high latitude) 25 d 9 h 7 m 11.6 s 35 d ~28 days (equatorial) [2] Mercury: 58.6462 days [3 ...

  3. Neptune - Wikipedia

    en.wikipedia.org/wiki/Neptune

    The long orbital period of Neptune means that the seasons last for forty Earth years. [109] Its sidereal rotation period (day) is roughly 16.11 hours. [ 12 ] Because its axial tilt is comparable to Earth's, the variation in the length of its day over the course of its long year is not any more extreme.

  4. List of gravitationally rounded objects of the Solar System

    en.wikipedia.org/wiki/List_of_gravitationally...

    Rotation period days: 25.38 Orbital period about Galactic Center [4] million years 225–250 Mean orbital speed [4] km/s: ... and one each of Earth, Neptune, ...

  5. 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.

  6. New Neptune photos offer rare views of planet’s rings - AOL

    www.aol.com/news/neptune-photos-offer-rare-views...

    Neptune was discovered in 1846 and is located 30 times farther from the sun than Earth. The planet's 164-year orbit takes it through some of the darkest and most remote regions of the outer solar ...

  7. Sidereal time - Wikipedia

    en.wikipedia.org/wiki/Sidereal_time

    The slightly longer stellar period is measured as the Earth rotation angle (ERA), formerly the stellar angle. [4] An increase of 360° in the ERA is a full rotation of the Earth. A sidereal day on Earth is approximately 86164.0905 seconds (23 h 56 min 4.0905 s or 23.9344696 h).

  8. Enough about the Great Red Spot, this giant storm on Neptune ...

    www.aol.com/article/news/2017/08/04/giant-storm...

    For premium support please call: 800-290-4726 more ways to reach us

  9. Seasons on planets - Wikipedia

    en.wikipedia.org/wiki/Seasons_on_planets

    5.1 Direction of north pole / rotation axis of Solar ... hence their duration is different if the year duration in Earth days is different. ... Neptune: 299.33 +42.95 ...