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  1. www.universeguide.com › fact › oortcloudThe Oort Cloud facts, evidence, location, distance and is ...

    The Oort Cloud is a huge area of space that encompasses our solar system where long-term comets are believed to originate. An event causes them to be sent on their way towards the inner solar system, our planet Earth and the Sun. The Oort Cloud theory's creator was Jan Hendrik Oort, a Dutch astronomer ...

  2. www.britannica.com › science › Oort-cloudOort cloud | Astronomy & Formation Process | Britannica

    3 de may. de 2024 · Named for the Dutch astronomer Jan Oort, who demonstrated its existence, the Oort cloud comprises objects that are less than 100 km (60 miles) in diameter and that number perhaps in the trillions, with an estimated total mass 10–100 times that of Earth.

  3. Imágenes

    • ESA - Jan Hendrik Oort: Comet pioneer
    • Jan Hendrik Oort (1900-1992). | Download Scientific Diagram
    • Jan Hendrik Oort and the Secrets of the Oort Cloud | SciHi Blog
    • De biografie van Jan Hendrik Oort doet de wereldberoemde astronoom ...
    • Jan Hendrik Oort, comets — Astronoo

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  4. link.springer.com › chapter › 10Dark Matter, QCD Axions, and the HAYSTAC Detector

    18 de may. de 2024 · Jan Hendrik Oort, a Dutch astronomer, a year earlier had observed that the stars in our galactic neighborhood are moving too fast. He used the term dark matter but considered that the observed motion could be explained by ordinary stars that are either dim or dark.

  5. www.universiteitleiden.nl › en › eventsDo we have a standard model of cosmology? - Leiden University

    6 de may. de 2024 · Oort lecture: a more than 30 year old tradition The yearly Oort lecture, in memory of the famous Dutch astronomer, is organized by the Jan Hendrik Oort Foundation and the Leiden Observatory. The Oort lecture is intended for a wide audience with an interest in astronomy and is given every year by a prominent astronomer.

  6. Videos

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  7. www.cosmos-indirekt.de › Physik-Schule › OortscheOortsche Rotationsformeln – Physik-Schule

    2 de may. de 2024 · Oortsche Rotationsformeln in Leiden. Die oortschen Rotationsformeln für die differenzielle Rotation des Sternsystems der Milchstraße wurden vom holländischen Astronomen Jan Hendrik Oort (1900–1992) entwickelt. 1927 gelang Oort der Nachweis der Rotation unserer Galaxis. Mithilfe der Stellarstatistik betrachtete er die Sterne in ...

  8. www.cosmos-indirekt.de › Physik-Schule › Oortsche_WolkeOortsche Wolke – Physik-Schule

    9 de may. de 2024 · Die Wolke wurde 1950 vom niederländischen Astronomen Jan Hendrik Oort als Ursprungsort der langperiodischen Kometen postuliert. Oort griff damit einen Vorschlag des estnischen Astronomen Ernst Öpik von 1932 auf.

  9. spaceplace.nasa.gov › oort-cloudWhere Does the Solar System End? - NASA Space Place

    29 de ago. de 2022 · The Short Answer: Beyond our solar system lies the Oort cloud. The Oort cloud is made of icy pieces of space debris the sizes of mountains and sometimes even larger. The Oort cloud is where some comets come from. Where does the solar system end? The Oort Cloud. Watch on. Click here to download this video (1920x1080, 84 MB, video/mp4).