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Chi 2 Orionis (Chi 2 Ori / χ 2 Orionis / χ 2 Ori) / k aɪ. t uː ˈ ɒ r aɪ / is a B-type blue supergiant star in the constellation of Orion.It has an apparent visual magnitude of 4.63 but being quite distant, and heavily extinguished it burns with the greatest absolute visual light magnitude among stars in Orion within the near reaches of the galaxy, 0.9 of a magnitude brighter than Rigel.
Pi 1 Orionis (π 1 Ori, π 1 Orionis) is a star in the equatorial constellation of Orion.It is faintly visible to the naked eye with an apparent visual magnitude of 4.74. [2] Based upon an annual parallax shift of 28.04 mas, [1] it is located about 116 light-years from the Sun.
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 ...
Xi Orionis (ξ Orionis) is a binary star system in the northeastern part of the constellation of Orion, well above the red giant star Betelgeuse in the sky. It lies next to another blue main-sequence star, Nu Orionis, which is somewhat closer at 520 light-years' distance.
V380 Orionis is a multiple star system containing at least three stars. A very faint cool star 9" away is also thought to be gravitationally bound, making it a hierarchical quadruple system. Two infrared sources within NGC 1999 have been listed as companions in some catalogues, [ 7 ] but are not thought to be stars. [ 8 ]
Pi Orionis (π Ori, π Orionis) is a group of fairly widely scattered stars in the constellation Orion that constitute the asterism Orion's Shield or Orion's Bow. [1]They form an exception to the general rule that stars that share the same Bayer designation are close together: π 1 is nearly 9° north of π 6 (Tau Eridani is an even more noteworthy example of this).
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