Orion Constellation is depicted as a prominent constellation that are located in the celestial equator that are visible from the overall world. This is identified as one of the most significant constellation that are visible in the night sky. This constellation is named after Orion, a hunter present in the Greek Mythology. In addition to this it is identified as the brightest star comprising of the supergiants, blue white regal known as Beta Orionis as well as the red Betelgeuse that are known as Alpha Orionis. The Orion Constellation is visible from both Northern as well as Southern Hemisphere. In the Northern Hemisphere the constellation can be significantly seen from the late autumn till the early spring. In the Southern Hemisphere the Orion is seen in the summer months as well as it is viewed to appear upside down. The constellation mainly consists of bright blue supergiant stars, the most notable exception being the red supergiant Betelgeuse which lies on Orion's shoulder. Betelgeuse is also the largest star in the constellation, it has 1,000 times the radius of the sun. The brightest star in the constellation is Rigel, which is 40,000 times brighter than the sun and emits 100,000 times the energy. The three stars which form a line through the middle of the constellation are known as Orion's Belt. If an individual follows an imaginary line down through Orion's Belt it will take you to the brightest star in the night sky, Sirius, follow the line up in the southern hemisphere. Betelgeuse is the name of the most famous star in this famed constellation. Its formal name is "Alpha Orionis," with the Greek letter alpha given to the brightest star in a given constellation, beta to the second-brightest and so on. Betelgeuse is in fact the second-brightest of the stars in Orion, trailing its across-the-body comrade Rigel by a slight amount. But the apparent brightness of Betelgeuse waxes and wanes somewhat over time. Betelgeuse is what astronomers call a variable star and at the time Betelgeuse was named, it looked brighter than Rigel. In any case, Betelgeuse is considered the 12th-brightest star in the sky. The name means "armpit of the central one" in Arabic, implying that constellations were shared between cultures. The blue giant star Rigel enjoys less notoriety than Betelgeuse, but it is easier to say and it claims the honour of being the 7th-brightest star in the heavens. Finally, Bellatrix, which marks Orion's left shoulder, might appear quite bright in its own right were it not by happenstance located so close to so many other literal luminaries. The main stars of the Orion Constellation is briefly explained below:
Betelgeuse: A red supergiant star around 640 light years from Earth, Betelgeuse, also known as Alpha Orionis, has a radius 1,000 times larger than the sun as well as is expected to explode as a supernova in the next million years.
Meissa: A blue giant star with surface temperatures around 5 times hotter than our sun, Meissa is actually a pair of binary stars, its companion is similar in size and mass to the sun.
Bellatrix: A blue giant star around 250 light years from Earth, Bellatrix is 6 times larger than our sun and 8 times more massive, the star is also known as Gamma Orionis.
Alnitak: Alnitak is a triple star system around 736 light years from Earth, the primary star is a blue supergiant star with a radius around 20 times larger than the sun, Alnitak is also known as Zeta Orionis.
Alnilam: A blue supergiant star around 1,400 light years from Earth, Alnilam is 24 times larger than the sun and more than 250,000 times as luminous, the star is also known as Epsilon Orionis.
Mintaka: Also known as Delta Orionis, Mintaka is actually a pair of blue giant stars with the largest having 16 times the radius of the sun, both stars are around 100,000 times more luminous than the sun.
Saiph: A blue supergiant star around 650 light years from Earth, Saiph is 16 times more massive and around 22 times larger in diameter than the sun.
Rigel: Also known as Beta Orionis, Rigel is around 800 light years from Earth and is the brightest star in the constellation, once again like most of the others it is a blue supergiant around 75 times larger in diameter than the sun and around 40,000 times brighter.
M42: Perhaps the most interesting component of the Orion constellation, M42 is not a star but is in fact the Orion nebula, a vast star forming region some 1,500 light years from Earth, the nebula makes up the sword of Orion along with two other stars. The Orion nebula has an apparent magnitude of 4.0, making it easily visible with the naked eye apart from those living in an around the centre of large cities.
If an individual is being too impatient for viewing an Orion constellation or if an individual does not stays in the appropriate location where the constellation is found then the individual must consult an interactive online star chart to get a sense of Orion's size, shape and relationship to nearby constellations. The chances in regards to the observation of the constellation is more. Unlike a lot, even most, of the constellations, Orion arguably bears a strong relationship to that for which it is named: a hunter. To the perhaps less imaginative, Orion rather resembles a bow tie turned on one end, with prominent stars at the upper and lower left and right and a strip of three other prominent stars forming the narrow middle. These middle stars are actually the belt; the striking red star at the top left and the equally striking blue star at the lower right are among the brightest in the night sky, which along with Orion's distinctive shape helps elevate its profile considerably. This is depicted to be one of the significant constellation present in the sky and is a very important sector for study regarding the astronomers.
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