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  2. List of orbits - Wikipedia

    en.wikipedia.org/wiki/List_of_orbits

    This works out to an altitude of 35,786 km (22,236 mi). Both complete one full orbit of Earth per sidereal day (relative to the stars, not the Sun). High Earth orbit: geocentric orbits above the altitude of geosynchronous orbit (35,786 km or 22,236 mi). [8]

  3. 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 ...

  4. Elves in Middle-earth - Wikipedia

    en.wikipedia.org/wiki/Elves_in_Middle-earth

    The Elves awoke at Cuiviénen, on the Sea of Helcar (right) in Middle-earth, and many of them migrated westwards to Valinor in Aman, though some stopped in Beleriand (top), and others returned to Beleriand later. The first Elves were awakened by Eru Ilúvatar near the bay of Cuiviénen during the Years of the Trees.

  5. List of Earth observation satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_Earth_observation...

    True color image of the Earth from space. This image is a composite image collected over 16 days by the MODIS sensor on NASA’s Terra satellite. NASA Earth science satellite fleet as of September 2020, planned through 2023. Earth observation satellite missions developed by the ESA as of 2019.

  6. Geostationary orbit - Wikipedia

    en.wikipedia.org/wiki/Geostationary_orbit

    A geostationary orbit, also referred to as a geosynchronous equatorial orbit [a] (GEO), is a circular geosynchronous orbit 35,786 km (22,236 mi) in altitude above Earth's equator, 42,164 km (26,199 mi) in radius from Earth's center, and following the direction of Earth's rotation.

  7. Orbital inclination - Wikipedia

    en.wikipedia.org/wiki/Orbital_inclination

    For a satellite orbiting the Earth directly above the Equator, the plane of the satellite's orbit is the same as the Earth's equatorial plane, and the satellite's orbital inclination is 0°. The general case for a circular orbit is that it is tilted, spending half an orbit over the northern hemisphere and half over the southern.

  8. Uncrewed lunar missions and 1st private space station among ...

    www.aol.com/news/uncrewed-lunar-missions-1st...

    A six-day launch window opens no earlier than mid-January for the company's first launch on a SpaceX ... subsurface and global navigation satellite abilities. ... in low Earth orbit by 2028, two ...

  9. Earth Observing System - Wikipedia

    en.wikipedia.org/wiki/Earth_Observing_System

    Significantly, this program focused on launching satellites to orbit geosynchronously and evaluate the effectiveness of this orbit pattern in observing the Earth. [1] ATS-3, the longest-lasting mission, saw a life span of over 20 years. It was the first satellite to capture colour images from space and acted significantly as a medium of ...