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32 Orionis is a triple [3] star system in the equatorial constellation of Orion. It has the Bayer designation A Orionis , while 32 Orionis is the Flamsteed designation . This system is visible to the naked eye as a faint point of light with a combined apparent visual magnitude of 4.20. [ 2 ]
This is an A-type main-sequence star with a stellar classification of A3 Va. [3] It is a Lambda Boötis star, [8] which means the spectrum shows lower-than-expected abundances for heavier elements. [9] Pi 1 Orionis is a relatively young star, just 100 million years old, [5] and is spinning fairly rapidly with a projected rotational velocity of ...
Iota Orionis (ι Orionis, abbreviated ι Ori) is a multiple star system in the equatorial constellation of Orion the hunter. It is the eighth-brightest member of Orion with an apparent visual magnitude of 2.77 and also the brightest member of the asterism known as Orion's Sword. It is a member of the NGC 1980 open cluster.
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]
Mu Orionis Aa is an A5V dwarf and metallic line star, of effective temperature 8,350 Kelvin, and apparent magnitude of +4.31. Mu Orionis Aa has 2.1 solar masses, and a radius of 2.9 R ☉ and a luminosity 32 times that of the Sun. Mu Orionis Ab is a G5V dwarf orbiting Aa at a distance of 0.077 AU, 0.2x the orbit of Mercury.
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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.