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  2. Owl Nebula - Wikipedia

    en.wikipedia.org/wiki/Owl_Nebula

    The Owl Nebula (also known as Messier 97, M97 or NGC 3587) is a planetary nebula approximately 2,030 light years away in the constellation Ursa Major. [2] Estimated to be about 8,000 years old, [ 6 ] it is approximately circular in cross-section with a faint internal structure.

  3. List of planetary nebulae - Wikipedia

    en.wikipedia.org/wiki/List_of_planetary_nebulae

    Jewel Bug Nebula: NGC 7027: 1878 3.0 (approx.) 10 Cygnus: Helix Nebula: NGC 7293: 1824 0.68 +0.15 −0.08: 7.6 Aquarius: Little Dumbbell Nebula: M76: NGC 650, NGC 651: 1780 3.4 (approx.) 10.1 Perseus: Owl Nebula: M97: NGC 3587: 1781 2.6 (approx.) 9.9 Ursa Major: Twin Jet Nebula or Butterfly Nebula M2-9: 1947 2.1 14.7 Ophiuchus: NGC 7026: 1873 5 ...

  4. Messier 82 - Wikipedia

    en.wikipedia.org/wiki/Messier_82

    Messier 82 (also known as NGC 3034, Cigar Galaxy or M82) is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major.It is the second-largest member of the M81 Group, with the D 25 isophotal diameter of 12.52 kiloparsecs (40,800 light-years).

  5. Messier 78 - Wikipedia

    en.wikipedia.org/wiki/Messier_78

    Messier 78 or M78, also known as NGC 2068, is a reflection nebula in the constellation Orion. It was discovered by Pierre Méchain in 1780 and included by Charles Messier in his catalog of comet-like objects that same year. [4] M78 is the brightest diffuse reflection nebula of a group of nebulae that includes NGC 2064, NGC 2067 and NGC 2071.

  6. youtube-dl - Wikipedia

    en.wikipedia.org/wiki/Youtube-dl

    youtube-dl <url> The path of the output can be specified as: (file name to be included in the path) youtube-dl -o <path> <url> To see the list of all of the available file formats and sizes: youtube-dl -F <url> The video can be downloaded by selecting the format code from the list or typing the format manually: youtube-dl -f <format/code> <url>

  7. NGC 457 - Wikipedia

    en.wikipedia.org/wiki/NGC_457

    NGC 457 (also designated Caldwell 13, and known as the Dragonfly Cluster, E.T. Cluster, Owl Cluster, Kachina Doll Cluster or Phi Cassiopeiae Cluster) [2] is an open star cluster in the constellation Cassiopeia.

  8. Category:Images of nebulae - Wikipedia

    en.wikipedia.org/wiki/Category:Images_of_nebulae

    Download as PDF; Printable version; ... Help. Media in category "Images of nebulae" The following 3 files are in this category, out of 3 total. ... The Eagle Nebula ...

  9. Winnecke 4 - Wikipedia

    en.wikipedia.org/wiki/Winnecke_4

    Winnecke 4 (also known as Messier 40 or WNC 4) is an optical double star consisting of two unrelated stars in a northerly zone of the sky, Ursa Major.. The pair were discovered by Charles Messier in 1764 while he was searching for a nebula that had been reported in the area by Johannes Hevelius.

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