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  2. Trapezium Cluster - Wikipedia

    en.wikipedia.org/wiki/Trapezium_Cluster

    The Trapezium or Orion Trapezium Cluster, also known by its Bayer designation of Theta 1 Orionis (θ 1 Orionis), is a tight open cluster of stars in the heart of the Orion Nebula, in the constellation of Orion. It was discovered by Galileo Galilei. On 4 February 1617 he sketched three of the stars (A, C and D), but missed the surrounding ...

  3. 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.

  4. Theta1 Orionis C - Wikipedia

    en.wikipedia.org/wiki/Theta1_Orionis_C

    Theta 1 Orionis C (θ 1 Orionis C) is a member of the Trapezium open cluster that lies within the Orion Nebula. The star C is the most massive of the four bright stars at the heart of the cluster. It is an O class blue main sequence star with a B-type main sequence companion.

  5. Template:Orion (constellation) - Wikipedia

    en.wikipedia.org/wiki/Template:Orion_(constellation)

    Orion (constellation)}} is a {}-based template to be used at the bottom of articles about astronomical objects beyond the Solar System, located in the constellation of Orion. The template is divided into categories of stars , star clusters , nebulae , exoplanets , galaxies , galaxy clusters , and a miscellaneous "other" category.

  6. List of planetary nebulae - Wikipedia

    en.wikipedia.org/wiki/List_of_planetary_nebulae

    Orion: NGC 2371: 1785 4.3 13 Gemini: Blue Racquetball / Turquoise Orb NGC 6572: 1825 ... Box Nebula NGC 6445: 1786 4.5 11.2 Sagittarius: Eye of Sauron Nebula M 1-42: ...

  7. Becklin–Neugebauer Object - Wikipedia

    en.wikipedia.org/wiki/Becklin–Neugebauer_Object

    The Becklin–Neugebauer Object (BN) is an object visible only in the infrared in the Orion molecular cloud 1 (OMC1). It was discovered in 1967 by Eric Becklin and Gerry Neugebauer during their near-infrared survey of the Orion Nebula. [4]

  8. NGC 1981 - Wikipedia

    en.wikipedia.org/wiki/NGC_1981

    NGC 1981 (also known as OCL 525) is an open cluster which is located in the constellation Orion. It was discovered by John Herschel on 4 January 1827. Its apparent magnitude is 4.2 [3] and its size is 28.00 arc minutes. It lies to the north of the Orion Nebula, separated from it by the Sh2-279 region containing NGC 1973, 1975, and 1977.

  9. 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.