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2007-02-28 16:38:44 · 16 answers · asked by maryj453 1 in Science & Mathematics Astronomy & Space

16 answers

The sun is the closest star to earth. Alpha centauri is the closest star to our solar system

2007-02-28 16:46:51 · answer #1 · answered by HeliEMT 3 · 0 0

1) Proxima Centauri
The closest star to our our own solar system will not always be closest, but it will be a long time before that happens. Proxima Centauri is the third star in the Alpha Centauri star system, also known as Alpha Centauri C.
Distance: 4.2 LY
Spectral Type: M5.5Vc
2) Rigil Kentaurus
The second closest star is a tie between the sister stars of Proxima Centauri. Alpha Centauri A and B make up the other two stars of the triple star system Alpha Centauri.
Distance: 4.3 LY
Spectral Type: G2V
3) Barnard's Star
A faint red dwarf star, discovered in 1916 by E. E. Barnard, recent efforts to discover planets around Barnard's Star have failed.
Distance: 5.9 LY
Spectral Type: M3.8V
4) Wolf 359
Known to many as thelocation of a famous battle on Star Trek the Next generation, Wolf 359 is a red dwarf. It is so small that if it were to replace our sun, an observer on Earth would need a telescope to see it clearly.
Distance: 7.7 LY
Spectral Type: M5.8Vc
5) Lalande 21185
While it is the fifth closest star to our own sun, Lalande 21185 is about three times too faint to be seen with the naked eye.
Distance: 8.26 LY
Spectral Type: M2V
6) Luyten 726-8A and B
Discovered by Willem Jacob Luyten (1899-1994), both Luyten 726-8A 726-8B are red dwarfs and too faint to be seen with the naked eye.
Distance: 8.73 LY
Spectral Type: M5.5 de & M6 Ve
7) Sirius A and B
Sirius, also known as the Dog Star, is the brightest star in the sky. Sirius B, the companion, has received considerable attention itself, since it is the first white dwarf with a spectrum to show a gravitational red shift as predicted by the general theory of relativity.
Distance: 8.6 LY
Spectral Type: A1Vm
8) Ross 154
Ross 154 appears to be a flare star, which means that it can increase its brightness by a factor of 10 or more before reverting to its normal state, a process which takes only a few minutes.
Distance: 9.693 LY
Spectral Type: M3.5
9) Ross 248
While it is now the ninth closest star to our solar system, around the year 38000AD, the red dwarf Ross 248 will take the place of Proxima Centauri as the closest star to us.
Distance: 10.32 LY
Spectral Type: M5.5V
10) Epsilon Eridani
Eridani (tenth closest star to Earth) is the closest star known to have a planet, Epsilon Eridani b. It is the third closest star that is viewable without a telescope.
Distance: 10.5 LY
Spectral Type: K2V

2007-03-01 00:52:08 · answer #2 · answered by Anonymous · 1 0

The closest star to the earth,other than our very own Sun, is Proxima Centauri, but its brighter neighbor Alpha Centauri, a double star, is so nearly the same distance that data about it are usually given. It is about 4 light years distance, or about 3.8x1016 m.

2007-03-01 00:47:30 · answer #3 · answered by Ezhil 1 · 0 0

The sun is, but the closest thing that looks like a star is Mars.

2007-03-01 00:47:08 · answer #4 · answered by Anonymous · 0 0

The Sun. If you meant the closest neighbouring star, that would be the Alpha Centauri system, which is a triple star, consisting of Alpha Centauri A and B and Proxima Centauri.

2007-03-01 00:53:47 · answer #5 · answered by Paul The Rock Ape 4 · 0 0

Not sure but I think those in Orin's Belt. Did you know the Christmas Star may not have been a star at all, it may have been the planet Saturn.

I did not think you were after the obvious one, the Sun. But it of course our sun is a star.

2007-03-01 00:59:20 · answer #6 · answered by danielditdit 2 · 0 0

The Sun

2007-03-01 00:42:43 · answer #7 · answered by ? 3 · 0 0

The sun, for one. If you mean our closest Solar System neighbor, it's Alpha Centauri.

2007-03-01 01:01:32 · answer #8 · answered by Lizzie 4 · 0 0

The Sun
Or one of the planets- mars or Venus because they are kinda considered a star, if not, then it's the sun

2007-03-01 00:42:42 · answer #9 · answered by vvn 3 · 0 0

The star closest to earth is 'Proxima Centauri'.
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2007-03-01 00:47:58 · answer #10 · answered by Sharmila B 2 · 0 1

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