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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.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoabout 276,000 times further away. Alpha Centauri is 4.4 light years away which is about 276,000 Astronomical units. One AU = distance between earth and the sun.
Wiki User
∙ 12y agoAlpha Centauri is much further away than out sun. At the speed of light, it would take 4.37 years to get to Alpha Centauri, but for our sun, it would only take around 8 minutes.
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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.
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.
The nearest star beyond the sun is Alpha Centauri which is 4.21016 meters away If you were to receive a radio message from this star today how long ago would it have been seen?
Actually the nearest star (except for the sun) is Proxima Centauri is next at 4.3 light-years from the Earth. It would take 3.4 years at one light-year/year for radio waves to reach Earth from there. This is because the radio waves are travelling in a vacuum and all electromagnetic wave in a vacuum travel at "C" AKA the speed of light.
When is the sun nearest to the sun?
The nearest star to Earth is Proxima Centauri (Alpha Centauri C).
How long does it take Alpha Centauri to orbit the sun?
Alpha Centauri does not orbit the sun.
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.
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 star is closest to the earth other than the sun?
Alpha Centauri, which is 4.2 light years away from the Earth.
What are the 3 nearest stars to OUR sun?
Proxima Centauri Alpha Centauri A Alpha Centauri B
What is the nearest star to earth aside from sun look for distance?
alpha centauri
How far is the second closest star to the sun?
Mars is the 2nd closest planet to the Earth. Venus is the planet closest to the Earth.
Why doesn't alpha centauri look as big as the sun?
because sun is the only star that is close to earth
Eight stars nearest to the earth?
sun, proxima centauri,alpha centauriA,alpha centauriB,bernard's,wolf359,lalande siriusA
