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  1. en.wikipedia.org › wiki › Crab_NebulaCrab Nebula - Wikipedia

    Há 4 dias · The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. The common name comes from a drawing that somewhat resembled a crab with arms produced by William Parsons, 3rd Earl of Rosse, in 1842 or 1843 using a 36-inch (91 cm) telescope. [6]

    • 8.4
    • 05ʰ 34ᵐ 31.94ˢ
    • +22° 00′ 52.2″
  2. 3 de mai. de 2024 · Talcott Parsons (December 13, 1902 – May 8, 1979) was an American sociologist of the classical tradition, best known for his social action theory and structural functionalism. Parsons is considered one of the most influential figures in sociology in the 20th century. [17]

  3. 29 de abr. de 2024 · Une nuit d’avril 1874, Ralph Copeland scrute le ciel avec le Léviathan. Construit en 1845 par William Parsons, cet instrument est alors le plus grand télescope du monde avec son miroir de 1,83...

  4. 27 de abr. de 2024 · William Parsons, 3rd Earl of Rosse, employing a 72-inch (1.8 m) reflecting telescope at Birr Castle, Ireland, found that the Whirlpool possessed a spiral structure, the first "nebula" to be known to have one.

  5. 1 de mai. de 2024 · Charles Messier himself discovered it in 1773 and added it to his famous catalog of comet-like objects, but it was William Parsons who first noticed its spiral structure. It glows at magnitude 8.7, and can be detected with binoculars under dark skies, but is best observed with a telescope.

  6. Há 3 dias · M51- Whirlpool Galaxy Among the galaxies visible in the spring sky, few are as frequently photographed as the Whirlpool Galaxy. Discovered by Charles Messier in 1773 and later recognized for its spiral structure by William Parsons, it holds a significant place in astronomical lore. With a brightness of magnitude 8.7, it is observable with binoculars under dark skies, but a telescope provides ...

  7. en.wikipedia.org › wiki › Jack_ParsonsJack Parsons - Wikipedia

    Há 3 dias · t. e. John Whiteside Parsons (born Marvel Whiteside Parsons; [nb 1] October 2, 1914 – June 17, 1952) was an American rocket engineer, chemist, and Thelemite occultist. Associated with the California Institute of Technology (Caltech), Parsons was one of the principal founders of both the Jet Propulsion Laboratory (JPL) and the Aerojet ...