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  2. Earth's orbit - Wikipedia

    en.wikipedia.org/wiki/Earth's_orbit

    One complete orbit takes 365.256 days (1 sidereal year), during which time Earth has traveled 940 million km (584 million mi). [2] Ignoring the influence of other Solar System bodies, Earth's orbit, also called Earth's revolution, is an ellipse with the Earth–Sun barycenter as one focus with a current eccentricity of 0.0167. Since this value ...

  3. Sidereal year - Wikipedia

    en.wikipedia.org/wiki/Sidereal_year

    The sidereal year differs from the solar year, "the period of time required for the ecliptic longitude of the Sun to increase 360 degrees", [2] due to the precession of the equinoxes. The sidereal year is 20 min 24.5 s longer than the mean tropical year at J2000.0 (365.242 190 402 ephemeris days) .

  4. Universal Time - Wikipedia

    en.wikipedia.org/wiki/Universal_Time

    Universal Time (UT or UT1) is a time standard based on Earth's rotation. [1] While originally it was mean solar time at 0° longitude, precise measurements of the Sun are difficult. Therefore, UT1 is computed from a measure of the Earth's angle with respect to the International Celestial Reference Frame (ICRF), called the Earth Rotation Angle ...

  5. Mini-moon will soon orbit Earth. Here's everything you need ...

    www.aol.com/mini-moon-soon-orbit-earth-110443782...

    2024 PT5 will make a horseshoe-type orbit around the Earth. The study dubbed it a "temporarily captured flyby," meaning this mini-moon is not expected to complete a full revolution around Earth.

  6. List of orbits - Wikipedia

    en.wikipedia.org/wiki/List_of_orbits

    Average altitude of 384,403 kilometres (238,857 mi), elliptical-inclined orbit. Beyond-low Earth orbit (BLEO) and beyond Earth orbit (BEO) are a broad class of orbits that are energetically farther out than low Earth orbit or require an insertion into a heliocentric orbit as part of a journey that may require multiple orbital insertions ...

  7. Earth - Wikipedia

    en.wikipedia.org/wiki/Earth

    The same effect on the Moon has led to its tidal locking: its rotation period is the same as the time it takes to orbit Earth. As a result, it always presents the same face to the planet. [ 179 ] As the Moon orbits Earth, different parts of its face are illuminated by the Sun, leading to the lunar phases . [ 180 ]

  8. Farewell for now to Earth’s 'mini moon' which could be part ...

    www.aol.com/news/farewell-now-earth-mini-moon...

    The spectrum of 2024 PT5 is "well-matched" by samples of the Moon and may have a common origin with the well-known asteroid Kamo’oalewa, considered a quasi-moon of Earth because of its orbit.

  9. Medium Earth orbit - Wikipedia

    en.wikipedia.org/wiki/Medium_Earth_orbit

    Clickable image, highlighting medium altitude orbits around Earth, [a] from Low Earth to the lowest High Earth orbit (geostationary orbit and its graveyard orbit, at one ninth of the Moon's orbital distance), [b] with the Van Allen radiation belts and the Earth to scale To-scale diagram of low, medium, and high Earth orbits Space of Medium Earth orbits (MEO) as pink area, with Earth and the ...