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Alnilam, Epsilon Orionis (ε Ori), is a bright blue supergiant located at a distance of 1,975.8 light years from Earth in the direction of Orion constellation.
A lightyear is the distance light can travel in a year. Feel free to use and share any original content from this website for educational or personal use. It is the 29th-brightest star in the sky and is a blue supergiant. Alnitak is the 5th brightest star in Orion and the 31st brightest star in the sky. Distance to Alnitak. The primary star, Mintaka Aa1, is 24 times more massive than our sun.
When taking into account the greater distance, Alnilam’s parameters becomes truly remarkable. A constellation is a patch of sky as seen from Earth. It has around 10.4 solar radii and it is 63.000 times brighter. Alnitak B is a 4Alnitak Ab is around 14 times more massive than our sun. [4] The surface gravity is reported in the scientific literature with a value that represents the base-10 logarithm of the acceleration of gravity, expressed in the [5] That is, the magnitude that Alnilam would have considered the radiation emitted in each region of the electromagnetic spectrum if we observed the star from a distance of 10 parsecs. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. Looking for Orion's Belt in the night sky is the easiest way to locate Orion in the sky. Mintaka Light travels to the Earth in 8.3 minutes and covers 93 million miles (150 million km). It is located at a distance of 1,340 light years from Earth. It is slightly variable, from magnitude 1.64 to 1.74. If the blue supergiant were, in fact, in place of the Sun, it would hit our atmosphere with an energy equal to If Alnilam were in the place of the Sun, it would hit our atmosphere with an energy of 817 megawatts per square meter.But where did the measurements reported by Lamers come from? In the West, the three stars of Orion’s Belt, as well as most of the brightest stars in the sky, have names of Arab origin. For other uses, see The radius rises to 42 solar radii, that is, 29.22 million km — the equivalent of 4,581 Earth radii.
and 200 A.D.. To give you an idea of how far away Alnilam is, here are a few events that occurred on Earth the year that the light you’re seeing left Alnilam.For further perspective on it’s distance, if the sun were scaled down to the size of a grain of sand, on that scale, the distance from Earth to Alnilam would be the distance from San Francisco, CA to Lisbon, Portugal. The most famous Western culture reference with Orion’s belt is the Three Kings. Alnilam is the middle star. Distance from Earth: Some 233 Light Years from Earth. It is also difficult to assess the age of individual light sources accurately. Orion has seven prominant stars: 1. The best way to estimate the distance of stars, at least the closest, is to calculate their The parallax of Alnilam was finally measured from space by the Hipparcos astrometric satellite, during a mission that lasted from 1989 to 1993.
Betelgeuse or Alpha Orionis at 643 light-years 2. If it had been found, the mass of both stars could have been derived from their orbital parameters, using Newtonian gravity formulas. Not much is known about the third star Alnitak B, with the exception that it is also older, at around 7 million years old. Alnitak to Alnilam is 1241 ly, Alnilam to Mintaka is 1285 ly, but Alnitak to Mintaka (so left star to right star) is only 55 ly. If you want that in miles, it is about 7,890,526,120,901,968.69, based on 1 Ly = 5,878,625,373,183.61 miles. Failing this, supergiant mass estimates can only be indirect, that is, based on stellar evolution models. Together with Mintaka and Alnitak, the three stars make up Orion's belt, known by many names across many ancient cultures. If you want that in miles, it is about 4,805,482,311,308,941.99, based on 1 Ly = 5,878,625,373,183.61 miles. If you want that in miles, it is about 4,805,482,311,308,941.99, based on 1 Ly = 5,878,625,373,183.61 miles. Alnilam (ε Orionis) is a supergiant, approximately 2,000 light-years away from Earth and magnitude 1.70.It is the 29th-brightest star in the sky and the fourth-brightest in Orion. Distance from Earth: ~2,000 lightyears Apparent Magnitude (from Earth): 1.69 Absolute Magnitude (if it were 32.6 ly away): -6.89 Sun’s Apparent Magnitude As Seen From Alnilam: 13.72 Luminosity: 537,000 solar luminosities (537,000 times as bright as our sun)
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