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  2. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    The known icy moons in this range are all ellipsoidal (except Proteus), but trans-Neptunian objects up to 450–500 km radius may be quite porous. [10] For simplicity and comparative purposes, the values are manually calculated assuming that the bodies are all spheres. The size of solid bodies does not include an object's atmosphere.

  3. Lists of astronomical objects - Wikipedia

    en.wikipedia.org/wiki/Lists_of_astronomical_objects

    List of NGC objects (2001–3000) List of NGC objects (3001–4000) List of NGC objects (4001–5000) List of NGC objects (5001–6000) List of NGC objects (6001–7000) List of NGC objects (7001–7840) List of IC objects; List of Messier objects; List of Caldwell objects; List of Herschel 400 objects; List of Melotte objects; List of ...

  4. List of Solar System objects - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System_objects

    The following is a list of Solar System objects by orbit, ordered by increasing distance from the Sun. Most named objects in this list have a diameter of 500 km or more. Most named objects in this list have a diameter of 500 km or more.

  5. Astrophysical jet - Wikipedia

    en.wikipedia.org/wiki/Astrophysical_jet

    An astrophysical jet is an astronomical phenomenon where outflows of ionised matter are emitted as extended beams along the axis of rotation. [1] When this greatly accelerated matter in the beam approaches the speed of light , astrophysical jets become relativistic jets as they show effects from special relativity .

  6. Astronomical object - Wikipedia

    en.wikipedia.org/wiki/Astronomical_object

    An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists within the observable universe. [1] In astronomy , the terms object and body are often used interchangeably.

  7. Outline of space science - Wikipedia

    en.wikipedia.org/wiki/Outline_of_space_science

    The diversity found in the different types and scales of astronomical objects make the field of study increasingly specialized. A proposed timeline of the origin of space, from physical cosmology. See astronomical object for a list of specific types of entities which scientists study. See Earth's location in the universe for an orientation.

  8. Why scientists lost track of a satellite in overcrowded space ...

    www.aol.com/why-scientists-lost-track-satellite...

    Lost — and foundin space. After liftoff, a larger satellite, called KH-9 Hexagon, shot the 26-inch-wide spacecraft into a low-earth orbit so it would continuously circumnavigate the globe ...

  9. Lists of artificial objects sent into space - Wikipedia

    en.wikipedia.org/wiki/Lists_of_artificial...

    The term artificial objects is closely associated with made by humans or not naturally occurring items that have been sent into space. This is a list of lists of artificial objects in space found on Wikipedia. Category:Lists of artificial objects sent into space; Category:Lists of space missions; Lists of spacecraft. Category:Lists of spacecraft