Rigel

An object that is ten thousand times brighter than Rigel would have an apparent magnitude of about -6. Rigel has an apparent magnitude of about 0.1, so an object that is ten thousand times brighter would be much more luminous and appear as a very bright object in the night sky.

Rigel and Betelgeuse are stars in the constellation Orion. Orion is one of the most recognizable constellations in the night sky, known for its prominent belt of three stars. Rigel is located at the hunter's foot, while Betelgeuse represents one of his shoulders.

It is basically a sphere, but with a little bulge in the middle caused by its rotation.

Rigel has been visible in the night sky for over 8 million years. It would have been seen by the first creatures who looked up into the night sky.

So no one can be said to have discovered Rigel.

Both Betelgeuse and Rigel are listed as being only 10 million yeas old, compared to the sun's 4.5 billion. Both are also expected to supernova soon, though Betelgeuse is expected to go out sooner, as it's been anticipated since 2011.

Rigel is a B8 class star which means it is very large, very hot and very young by comparison to other stars. It is virtualy impossible to age a specific star. This is usually done by aging star clusters, a much more accurate method. Rigel is estimated as being 17 times as heavy as the sun and through a standard formula should have a main sequence lifetime of 8 million years (very short) which means it is less than 8 million years old. It wasn't there when the dinosaurs were there.

The formula is (mass of earth / mass of other sun)^2.5 * 10 Billion years

The formula isn't perfect - there are other factors but this is a good guess.

Rigel is a blue supergiant star with a diameter of about 78.9 million miles (126.5 million kilometers), which is roughly 70 times the size of the Sun. Its surface temperature is around 12,100 Kelvin, making it one of the hottest stars visible to the naked eye.

Rigel is important because it is one of the brightest stars in the night sky, located in the Orion constellation. It is a blue supergiant star that serves as a key reference point for astronomers and is used in calculations related to stellar evolution and distance measurements in the Universe. Additionally, Rigel's brightness and visibility make it a popular star for amateur stargazers and enthusiasts.

Rigel, which is located in the Orion constellation, is approximately 860 light-years away from Earth. Altair, on the other hand, is a star in the Aquila constellation and is around 16.7 light-years away from us.

Rigel is imagined to be one of the feet of Orion, the Hunter.

That's the origin of its name "Rigel" . . . from the Sumerian/Hebrew/Arabic "regel" meaning 'foot'.

The star Rigel was named by the Arabic astronomers. Rigel is derived from the Arabic word "rijl" which means "foot," as it represents the foot of the Orion constellation.

Rigel is estimated to be around 8-9 million years old, while Capella is believed to be around 500-600 million years old.

I'm not sure exactly what detail you want, but here's a start.

Rigel is a triple star system. The main star of the three is a very luminous star.

It is a blue supergiant star.

No, there are no known planets that orbit the star Rigel. Rigel is a blue supergiant star located in the constellation of Orion, approximately 860 light-years away from Earth. It is not known to have any confirmed exoplanets orbiting it.

The diameter of Rigel Kentaurus, also known as Alpha Centauri, is estimated to be about 1.2 million kilometers. It is a binary star system composed of two stars, Alpha Centauri A and Alpha Centauri B, with Alpha Centauri A being slightly larger and more massive than our Sun.

the star rigel was formed just like anything else in this universe. Rigel was formed from a male star and a female star engaging in sexual activity. it a great price to pay when a female star gives birth because during the process the female star explodes into a super nova and dies off to make room for rigel. it is also a great sacrifice for male stars to have children because they can only ejoy sexual intamecy once in its life. after that the stars male parts fall of and insinigrate in the heavy denseness of space. hope this helps

The radius/diameter of Rigel is about 78 solar Radii.

That is a radius of about 5.45 x 1010 meters or 0.363 AU.
That is about the distance of Mercury from the Sun (0.387 AU)!


Diameter of Rigel = 10.90 x 1010 m or 0.726 AU

It doesn't. The magnitude scale is a bit counter-intuitive (a polite way of saying strange). The higher the number, the lower the magnitude. You will notice that the sun has by far the lowest number on the scale. See the link for more.

Probably both; at the end of its life, a very massive star like Rigel or Betelgeuse will experience a titanic explosion that will crush the core of the star into a black hole, while blasting the outer layers of the star into space. The supernova will shine for several months, and fade into obscurity, but the black hole will probably exist forever.

At least, if our mathematical theories concerning black holes is correct, which is always open to debate. It is at least remotely possible that everything we think we know about black holes will turn out to be incorrect, and that we will have to refine our theories on the basis of new discoveries as we venture forth into the universe.

You can tell if Rigel or Betelgeuse is hotter based on their color. Rigel appears blue-white, indicating a hotter temperature, while Betelgeuse appears orange-red, suggesting a cooler temperature. Additionally, the spectral class of Rigel (B8Ia) is hotter than Betelgeuse's spectral class (M1-2Ia).

Spectroscopic estimates this distance between 700-900 light years but Hipparcos's measurement gives the distance of 860 light years . Rigel is a blue super giant and bears about 24 solar masses and shinning with approximately 85000 times the luminosity than the sun

If Deneb and Rigel were placed at Alpha Centauri's distance from Earth (about 4.37 light-years away), they would appear as extremely bright stars in the sky, similar to our Sun. Deneb, a distant supergiant star, would still shine brightly but not as brightly as the Sun. Rigel, a blue supergiant, would appear much brighter than Deneb due to its larger size and luminosity.

I'm not sure exactly what detail you want, but here's a start.

Rigel is a triple star system. The main star of the three is a very luminous star.

It is a blue supergiant star.

The Sun is a star, Rigel is also a star. We name the stars just like we name the planets.

Our solar system consists of The Sun and all the planets that go around it including moons, asteroids and comets. To say that The Sun is the biggest star in our solar system simply doesn't make sense because it is the only star in it.

Now, our solar system is inside a galaxy where there are approximately 200 BILLION stars, some are bigger some are smaller than The Sun. The closest star to us after The Sun, is so far away that it is impractical to measure distances in miles, so we have to measure distances in light-years (one light-year is the distance light would travel in one year, light travels at 18600 miles per second, therefore, one light-year equals 5,865,696,000,000 miles). The closest visible star to our solar system is about 4.3 light-years away and that is far enough to make it seem like a little dot of light to the naked eye despite it being about the same size as The Sun.