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This is a spectroscopic binary star system with an orbital period of 45.1 days and an eccentricity of 0.26. [5] The primary component is a B-type subgiant star with a stellar classification of B3 IV. [3] With an estimated age of just 32 million years, [3] it has a relatively high rate of spin, showing a projected rotational velocity of 160 km/s ...
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]
Pi 3 Orionis (π 3 Orionis, abbreviated Pi 3 Ori, π 3 Ori), also named Tabit / ˈ t eɪ b ɪ t /, [10] [11] is a star in the equatorial constellation of Orion.At an apparent visual magnitude of 3.16, [2] it is readily visible to the naked eye and is the brightest star in the lion's hide (or shield) that Orion is holding.
Meissa / ˈ m aɪ s ə /, designated Lambda Orionis (λ Orionis, abbreviated Lambda Ori, λ Ori) is a star in the constellation of Orion. It is a multiple star approximately 1,300 ly away with a combined apparent magnitude of 3.33. [12] The main components are an O8 giant star and a B-class main sequence star, separated by about 4
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 .
Omega Orionis (ω Ori) is a single [8] star in the constellation Orion. Its apparent magnitude is 4.57 [2] and is located approximately 1,400 light-years from the Solar System. It is surrounded by a cloud of dust, forming a modest reflection nebula over a light-year wide. [9] A visual band light curve for Omega Orionis, adapted from Balona et ...
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Saiph / ˈ s eɪ f /, designation Kappa Orionis (κ Orionis, abbreviated Kappa Ori, κ Ori) and 53 Orionis (53 Ori), is a blue supergiant star and the sixth-brightest star in the constellation of Orion. Of the four bright stars that compose Orion's main quadrangle, it is the star at the south-eastern corner.