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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.
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11 Orionis is a solitary [10] Ap star in the equatorial constellation of Orion, near the border with Taurus.It is visible to the naked eye with an apparent visual magnitude of 4.65, [7] and it is located approximately 365 light years away from the Sun based on parallax. [1]
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.
Pi 6 Orionis (π 6 Ori, π 6 Orionis) is a solitary [9] star in the eastern part of the constellation Orion. It is visible to the naked eye with an apparent visual magnitude of 4.469. [2] Based upon an annual parallax shift of 3.45 mas, [1] it is around 950 light-years from the Sun.
GW Orionis is a variable star with quasi-periodic brightness changes. The apparent magnitude varies between 9.7 and 10.4 with dimming events of between 0.1 and 0.7 magnitudes roughly every 30 days, as well as more sinusoidal variations with an amplitude of 0.2 magnitudes over 11.6 years.
Upsilon Orionis (υ Ori, υ Orionis) is a star in the constellation Orion. It has the traditional name Thabit / ˈ θ eɪ b ɪ t / [9] or Tabit (ﺛﺎﺑﺖ, Arabic for "the endurer"), a name shared with Pi 3 Orionis. It is a blue-white main sequence star of apparent magnitude 4.62 located over 1,300 light-years distant from the Solar System.
The primary component is a B-type star with a stellar classification of B2 III. [3] The stellar spectrum of π 4 Ori A shows a strong depletion of the element boron. [12] It has nearly 11 [6] times the mass of the Sun and nine times the Sun's radius. [7] The star is 15.4 [10] million years old and has a projected rotational velocity of 38 km/s. [9]