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  2. Orion (constellation) - Wikipedia

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

    It is a multiple star system, composed of a large B-type blue giant and a more massive O-type main-sequence star. The Mintaka system constitutes an eclipsing binary variable star, where the eclipse of one star over the other creates a dip in brightness. Mintaka is the westernmost of the three stars of Orion's Belt, as well as the northernmost. [6]

  3. Orion's Belt - Wikipedia

    en.wikipedia.org/wiki/Orion's_Belt

    Orion's Belt is an asterism in the constellation of Orion.Other names include the Belt of Orion, the Three Kings, and the Three Sisters. [1] The belt consists of three bright and easily identifiable collinear star systems – Alnitak, Alnilam, and Mintaka – nearly equally spaced in a line, spanning an angular size of ~ 140′ (2.3°).

  4. Sigma Orionis - Wikipedia

    en.wikipedia.org/wiki/Sigma_Orionis

    Sigma Orionis or Sigma Ori (σ Orionis, σ Ori) is a multiple star system in the constellation Orion, consisting of the brightest members of a young open cluster.It is found at the eastern end of the belt, south west of Alnitak and west of the Horsehead Nebula which it partially illuminates.

  5. Mintaka - Wikipedia

    en.wikipedia.org/wiki/Mintaka

    δ Orionis is a multiple star system. There is a magnitude 7 star about 52 arcseconds away from the second-magnitude primary and a much fainter star in between. The system is designated WDS 05320-0018 in the Washington Double Star Catalog, with the 14th-magnitude companion listed as component B and the seventh-magnitude star as component C. [24]

  6. Alnilam - Wikipedia

    en.wikipedia.org/wiki/Alnilam

    Alnilam is the middle and brightest of the three stars of Orion's Belt. It is the 29th-brightest star in the sky (the fourth brightest in Orion) and is a blue supergiant. Together with Mintaka and Alnitak, the three stars make up Orion's Belt, known by many names across many ancient cultures. Alnilam is the middle star.

  7. 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 ...

  8. Alnitak - Wikipedia

    en.wikipedia.org/wiki/Alnitak

    The system is located at a distance of several hundred parsecs from the Sun and is one of the three main stars of Orion's Belt along with Alnilam and Mintaka. The primary star, Alnitak Aa, is a hot blue supergiant with an absolute magnitude of −6.0 and is the brightest class O star in the night sky with a visual magnitude of +2.0. It has two ...

  9. List of stars in Orion - Wikipedia

    en.wikipedia.org/wiki/List_of_stars_in_Orion

    • Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] See also [ edit ]