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Alpha Centauri - the star system in the constellation Centaurus, the nearest to the Sun. It consists of three components: a close binary system α Centauri A and α Centauri B and invisible to the naked eye, the red dwarf Proxima Centauri (the last star is usually treated separately.) Stars have their own names Rigel Kentavrus ("Centaur's foot"), Bungula ("hoof") and Tolimán, but they are used rarely. This system is located at a distance of 4, 4 light-years or 41,627,214,079,352 kilometers.
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What is the second star in the alpha centauri star system?
Alpha Centauri, although it appears to the naked eye as a single star, is a binary pair. Together they are designated Alpha Centauri AB, the more massive and luminous in the pair designated Alpha Centauri A, the less massive and luminous Alpha Centauri B. Together, this pair is the third brightest "star" in the night sky. There is a third star probably interacting gravitationally with the pair, Proxima Centauri, also designated Alpha Centauri C, a red dwarf which is not visible to the naked eye but is the next closest star to our Sun. Alpha Centauri B has about 90% of the mass of our Sun and is about 45% as bright. Note that Alpha Centauri B is not the "second" star (second brightest) in the constellation Centaurus: that is Beta Centauri, which is itself a trinary star system.
What is farther from Earth Alpha centauri or the sun?
That's actually an easy calculation, if you state the problem correctly. Alpha Centauri is about 4.5 light years away. There are 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day, and 365.24 days in a year. Multiply all those numbers together to find out how many light-seconds it is to Alpha Centauri. The Moon is about 1.5 light seconds away, so divide by that to get the ratio.
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.
Betelgeuse Alpha Centauri Polaris Antares Which of these stars are closest to the earth?
Every star is pretty huge, compared to anything in our life experience.In size.Betelgeuse: Red giant. Diameter 1,180 solar radii.Aldebaran: Orange giant: 45 solar radii.Alpha Centauri - Which one? A, B or C. For A, yellow dwarf: 1.22 solar radii.Polaris: Which one? A, Ab, B , C or D? For A, bright giant, 46 solar radii.So a simple question can be so difficult. All are giants except Alpha Centauri, however, as this is a homework question, the teacher is obviously looking for Betelgeuse.
What star is the closest to us in the milky way?
The Sun is "really" the closest star at 150,000,000 km (93,000,000 miles)Proxima Centauri is the closest star to us, at a distance of approximately 4.2 light years.(Proxima is Latin for "next to" or "nearest to")Alpha Centauri is the closest star system to us at a distance of approximately 4.3 light yearsThe Centauri system is a triple star system Centauri A and B have a mean separation of 11 AU's and are similar in size and temp to the Sun.Centauri C is a red dwarf it can not be seen with the unaided eye and was not discovered until 1918See related link for more information.
How long does it take Alpha Centauri to orbit the sun?
Alpha Centauri does not orbit the sun.
What two stars have the most similar luminosity?
Alpha Centauri and the sun
Is a giant Alpha Centauri?
No. Alpha Centauri is a three-star system consisting of two stars similar in size to the sun and a red dwarf.
What are stars that are similar to the sun called?
Stars similar to our Sun have a stellar class of G2V - Alpha Centauri A has the same class as our Sun
What are the 3 nearest stars to OUR sun?
Proxima Centauri Alpha Centauri A Alpha Centauri B
What star is very similar to sun?
Alpha Centauri is the nearest star that we can see and it is almost the same size and age as the Sun.
What star that is very similar to sun?
Alpha Centauri is the nearest star that we can see and it is almost the same size and age as the Sun.
When is the sun nearest to the sun?
The nearest star to Earth is Proxima Centauri (Alpha Centauri C).
Why does Alpha Centauri appear to be yellow-white?
Alpha Centauri A (Rigil Kentaurus) is a type G2V star - which is the same as our Sun so it has a colour of yellow.Alpha Centauri is abinary star system.Alpha Centauri A - the primary star, is a G2V star so has the apparent colour of yellowish-white, the same as our Sun.Alpha Centauri B - the secondary star, is a K1V star so has the apparent colour of yellow-orange.
What star is closest to the sun other than proxima centauri?
Alpha Centauri
What is the difference between Alpha Centauri A and Alpha Centauri B?
Alpha Centauri is a binary star system, commonly known as Alpha Centauri ABAlpha Centauri A is about the same size and age as our Sun with a spectral type of G2VAlpha Centauri B is about 14% smaller that our Sun and a lot cooler having a spectral type of K1VThere is a third star, not surprisingly called Alpha Centauri C or Proxima Centauri which is the closest star to Earth.See related link for more information.
Is alpha centauri the farthest star from the earth?
No; in fact, the Alpha Centauri system is the closest star system to Earth.The closest star to us is the Sun; the next-closest star is Proxima Centauri, part of the Alpha Centauri system.
