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  2. Nebula - Wikipedia

    en.wikipedia.org/wiki/Nebula

    In 1610, Nicolas-Claude Fabri de Peiresc discovered the Orion Nebula using a telescope. This nebula was also observed by Johann Baptist Cysat in 1618. However, the first detailed study of the Orion Nebula was not performed until 1659 by Christiaan Huygens, who also believed he was the first person to discover this nebulosity. [11]

  3. List of planetary nebulae - Wikipedia

    en.wikipedia.org/wiki/List_of_planetary_nebulae

    discovered [a] Distance [a] [b] Apparent magnitude (visual) [a] Constellation [a] Glowing Eye Nebula or Dandelion Puffball Nebula: NGC 6751: 1863 6.5 11.9 Aquila ...

  4. Pease 1 - Wikipedia

    en.wikipedia.org/wiki/Pease_1

    Pease 1 is a planetary nebula located within the globular cluster M15 33,600 light years away in the constellation Pegasus.It was the first planetary nebula known to exist within a globular cluster when it was discovered in 1928 [2] (for Francis G. Pease), and just four more have been found (in other clusters) since. [1]

  5. Orion Nebula - Wikipedia

    en.wikipedia.org/wiki/Orion_nebula

    As the Orion Nebula was the 42nd object in his list, it became identified as M42. Henry Draper's 1880 photograph of the Orion Nebula, the first ever taken. One of Andrew Ainslie Common's 1883 photographs of the Orion Nebula, the first to show that a long exposure could record new stars and nebulae invisible to the human eye.

  6. List of largest nebulae - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_nebulae

    Emission nebula: IC 2944: 142 ly (44 pc) [40] [41] Emission nebula: Eagle Nebula: 140 ly (43 pc) [42] H II region: Part of another diffuse nebula IC 4703. Rosette Nebula: 130 ly (40 pc) [43] H II region: Only 36 stars were known to be in this nebula but the Chandra telescope increased the number of known stars to 160. Lagoon Nebula: 110 ly (34 ...

  7. NGC 246 - Wikipedia

    en.wikipedia.org/wiki/NGC_246

    It is the first known planetary nebula to have a hierarchical triple star system at its center. [6] The nebula and the stars associated with it are listed in several catalogs, as summarized by the SIMBAD database. [1] NGC 246 was discovered by William Herschel in 1785. The nebula is roughly 1,600 light-years away. [7]

  8. Planetary nebula - Wikipedia

    en.wikipedia.org/wiki/Planetary_nebula

    The first planetary nebula discovered (though not yet termed as such) was the Dumbbell Nebula in the constellation of Vulpecula.It was observed by Charles Messier on July 12, 1764 and listed as M27 in his catalogue of nebulous objects. [10]

  9. William Herschel - Wikipedia

    en.wikipedia.org/wiki/William_Herschel

    Excluding duplicated and "lost" entries, Herschel ultimately discovered over 2,400 objects defined by him as nebulae. [15] (At that time, nebula was the generic term for any visually diffuse astronomical object, including galaxies beyond the Milky Way, until galaxies were confirmed as extragalactic systems by Edwin Hubble in 1924. [50])