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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.
What else can I help you with?
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.
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.
How is the Alpha Centauri A similar to the sun?
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.
Over millions of years is the Earth getting closer to the Sun or farther away from the Sun?
The Earth is getting very, very slightly farther away from the Sun over time, due to tidal forces.
When is the sun nearest to the sun?
The nearest star to Earth is Proxima Centauri (Alpha Centauri C).
What is the closest star near to the sun?
Alpha-Centauri Distance from Sun/Earth of alphaa-Centauri from the Earth is now reckoned at 4.396 light-years or 4.159×1013 km.) It is the same stella type as our Sun.
How long does it take Alpha Centauri to orbit the sun?
Alpha Centauri does not orbit the sun.
Is alpha centauri bigger than earth?
Yes, Alpha Centauri is significantly larger than Earth. Alpha Centauri is a star system that includes three stars: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri. The stars in this system are much larger and more massive than Earth, with Alpha Centauri A being similar to our Sun in size and mass. In contrast, Earth is a terrestrial planet, much smaller than any star.
Which is the closest star from earth?
The star closest to earth is the sun, at a distance of roughly 93 million miles.Light from the sun reaches us in a little over 8 minutes.The next closest star is Alpha Centauri, about 278,000 times farther away thanthe sun is. Light from Alpha Centauri travels for about 4.4 years to reach us.
The five closest stars to earth?
1. The sun 2. Proxima Centauri 3. Alpha Centauri A 4. Alpha Centauri B 5. Barnard's Star
Why does the alpha centauri star not look as big as the sun?
It looks smaller than the sun because it is much farther away.
One of its kind is Alpha centauri?
Alpha Centauri is the closest star system to Earth, located about 4.37 light-years away in the constellation of Centaurus. It consists of three stars: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri. Proxima Centauri is the closest known star to the Sun.
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.
What are the 3 nearest stars to OUR sun?
Proxima Centauri Alpha Centauri A Alpha Centauri B
How far is alpha centuri from Pluto?
Alpha Centauri is 4.365 light-years from the Sun. One light-year is 9.46*1012 kilometers. So: 4.365*9.46*1012= 4.13*1013 kilometers
What star is closest to the earth other than the sun?
Alpha Centauri, which is 4.2 light years away from the Earth.
