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Alpha Centauri (Rigil Kentaurus, Rigil Kent, or Toliman) is the brightest star in the southern constellation of Centaurus.
It is actually a binary star, but appears to us as a single star.
- Alpha Centauri A has an apparent magnitude of -0.01
- Alpha Centauri B has an apparent magnitude of +1.33
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoAlpha Centauri is a triple star system
- Alpha Centauri A has an apparent magnitude of -0.01
- Alpha Centauri B has an apparent magnitude of +1.33
- Alpha Centauri C (Proxima Centauri) has an apparent magnitude of +11.05
Wiki User
∙ 11y agoAlpha Centauri A is about 10% more massive than our Sun, with a radius about 23% larger. The projected rotational velocity of this star is 2.7±0.7 km·s−1, resulting in an estimated rotational period of 22 days, which gives it a slightly faster rotational period than our Sun's 25 days.
Alpha Centauri B is about 90% the mass of the Sun and 14% smaller in radius. The projected rotational velocity is 1.1±0.8 km·s−1, resulting in an estimated rotational period of 41 days.
Wiki User
∙ 10y agoBeta Centauri is not a single star but a star system containing three stars (a spectral binary pair and a more distant companion).
The largest star in the system has used all the hydrogen in its core and is now fusing helium. It is now a variable star with a pulsation period of 0.157 days (this means its size changes) it is a Giant star. Giant stars have radii up to a few hundred times that of the Sun.
Wiki User
∙ 11y agoIts diameter is about 15% of the diameter of the Sun.
Wiki User
∙ 14y agoAlpha Centauri is a binary star system. (Possibly a triple system with Proxima Centauri)
* Alpha Centauri A has a radius of 1.227 Suns * Alpha Centauri B has a radius of 0.865 Suns
Wiki User
∙ 14y agoAlpha Centauri has a diameter of approx 1,706,757 km.
Wiki User
∙ 14y agoPretty small, for a star. Its diameter is about 15% that of the Sun.
Wiki User
∙ 12y agoBeing a red dwarf, it is to be expected that it is smaller than our own Sun. The Wikipedia article lists a radius (or diameter) of about 14% that of our SUn.
Ivan Lin
Alpha Centauri is 66,659 mi big / / / 4.244 light years away from Sun and 4.243 from Earth
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What is the distance from Earth to the star Acubens?
Acubens, Alpha Cancri A, is approximately 174 light years from Earth.
What is monoceros distance from earth?
Monoceros' primary star - Alpha Monocerotis - is 144 light years from Earth.
If Deneb and Rigel were located at Alpha Centauri's distance from earth how would they appear?
They would both be bright enough to be seen by, and probably too bright to look at
What two stars have the same temperature?
No one knows for sure, but one possible candidate is the Alpha Centauri system, where Alpha Centauri A and Alpha Centauri B orbit each other at a distance of only 11.2 Au which is the equivalence of our Sun to Saturn.
What is the force of repulsion between an alpha particle and a gold nucleus when the alpha particle passes by the nucleus at a distance of 1pm?
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Which star is a super giant polaris alpha centaurs Antares betelgeuse?
betelgeusebetelgeuse
How far is Alpha Centauri from earth in cm?
Alpha Centuri is roughly 4.1626325x1018 centimeters from the Sun. The distance from the Earth varies depending on where we are in our orbit..
The light travels from Alpha Centauri to Earth in?
The distance has been generally presented in Light-years, which is the distance light travels in one-year. The distance to Alpha Centari is 4.7 light-years (alpha Centari is 4.3 light-years distance).
What is the distance from Earth to the star Acubens?
Acubens, Alpha Cancri A, is approximately 174 light years from Earth.
What is monoceros distance from earth?
Monoceros' primary star - Alpha Monocerotis - is 144 light years from Earth.
What is the nearest star to earth aside from sun look for distance?
alpha centauri
How weak or strong is Jupiter on earth gravity?
Input on the Wolfram Alpha website: "gravitational force between Earth and Jupiter"Wolfram Alpha assumes a distance of 5.151 au - that must be the average distance. Result: 1.278 x 10^18 newton
What star is closest to the earth other than the sun?
Alpha Centauri, which is 4.2 light years away from the Earth.
What is the closest star to Earth and what is it's distance?
Proxima Centauri, apparently part of the Toliman (Alpha Centauri) system, at a distance of about 4.2 light-years.
Is alpha centauri a planet?
No. Alpha centaurii or Proxima centaurii (Proxima=Closest in Latin) is the closest star to earth except the sun, with an approx. distance of 4.28 lightyears (the distance that light can travel in 4.28 years). so alpha centaurii is a star not a planet. if it has planets orbiting around it is unknown.
Is How far is Alpha Centauri from Earth and How far is Alpha Centauri from the Sun the same question?
NO IT ISN'T. People have said is is but the distance between the Earth and our Sun is 1 AU which stands for Astronomical Unit which is 150 000 000 km so the distances must be different!Answer:1. The Earth is going round the Sun so twice a year the distance is exactly the same.2. The distance to Alpha C. is 276000 astronomical units therefore plus or minus 1 makes virtually no difference.
How do you spell centaurus?
As spelled, the capitalized form "Centaurus" is a constellation, known as the location of the three nearest stars to Earth, Proxima Centauri and Alpha Centauri A and B.The common word is centaur, plural centaurs, half-man half-horse creatures.
