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What evidence supports that proxima centauri is the closest star to the earth other than the sun?
For stars closer than about 400 light years (LY), we can directly calculate the distance using trigonometry and the parallax shift of the "nearby" stars as compared to the more distant stars far away. By observing the nearby star at times 6 months apart, we have a "baseline" of 2 AU distance, and we can calculate the distance. The closer, the more accurate, of course. Since Proxima Centauri is only 4.2 LY away, our calculation is pretty much spot-on. Beyond about 400 LY, our distance estimates are based on the difference between the relative magnitude of the star (how bright it looks to us) as compared to the "absolute magnitude", the brightness that we calculate based on the star's spectrum, size and color. So for the red supergiant star Betelgeuse, our estimated distance of 650 LY could be off 140 LY either way!
How far away in Mirach from Earth?
Mirach or Beta Andromodae is approx. 199 ly from Earth. It is a red giant star of spectral class M0. It's mass is 3 to 4 solar masses and diameter of 90 solar diameters.
How far away is the star Elidani?
There is no star by that name. There is a constellation with the name Eridanus. That constellation, like any constellation, contains many stars, at different distances.---ANSWER---Just a sub note.I believe what you may be refering to in the question is the star Epsilon Erandi. At 10.5 ly away i believe it is the closest star to have confirmed extra solar planets orbiting it.
How many light years away is alzirr from earth?
Approx 59 ly.
Which star is the nearest to your Sun?
Proxima Centauri is a very dim red-dwarf companion of the bright star Alpha Centauri in the southern Centaurus constellation. Proxima is about 4.2 light years from Earth, while Alpha Centauri is 4.5 LY away. Even though Proxima Centauri is the closest star to our own, it is almost invisible to the naked eye.
How far away is the star Zavijah from earth?
35.6 ± 0.3 ly
How far away is alpha lupi from earth?
Alpha Lupi is 550 ly from Earth. It is a giant hot blue star of type B1.5. It has also been classified as a Beta Cepheid Variable.
How far away is the closest star from earth?
Obviously the closest star is our own sun (Sol) at 149,597,892 kilometers (92,955,820.5 miles). Then comes Proxima Centauri at 4.2 light years, Alpha Centauri A and Alpha Centauri B at 4.3 ly, Barnard's Star at 6 ly and Wolf 359 at 7.7 ly.
There is a star 37 light years from earth if i was 11 years old how old will i be when the star reaches earth?
If you were 11 years old, the light leaving a star 37 ly away would reach you when you are 48 years old.The star nearest 37 ly is Eta Boötis at 36.99 light years.These stars could also be descibed as 37 ly away.Alpha Boötis is 36.72 ly.Theta Persei is 36.63 lyHR5553 is 37.62 ly.
What color is the star Zaurak?
Zaurak or Gamma Eridani is a Red Giant star of spectral type M0.5 III Ca-ICr. It is approximately 150 ly from Earth.
How far away is Kochab from Earth?
From Wiki:126 ± 3 ly(38.8 ± 0.8 pc)
What is a more accurate approximation of the distance between the Earth and the star Epsilon Aurigae than 2000 ly?
It seems that the distance is currently not known with a greater accuracy than this.
How far is 1 LY in kilometers?
1 LY = 9.46073 * 1012 km (roughly 9.5 trillion km)
What evidence supports that proxima centauri is the closest star to the earth other than the sun?
For stars closer than about 400 light years (LY), we can directly calculate the distance using trigonometry and the parallax shift of the "nearby" stars as compared to the more distant stars far away. By observing the nearby star at times 6 months apart, we have a "baseline" of 2 AU distance, and we can calculate the distance. The closer, the more accurate, of course. Since Proxima Centauri is only 4.2 LY away, our calculation is pretty much spot-on. Beyond about 400 LY, our distance estimates are based on the difference between the relative magnitude of the star (how bright it looks to us) as compared to the "absolute magnitude", the brightness that we calculate based on the star's spectrum, size and color. So for the red supergiant star Betelgeuse, our estimated distance of 650 LY could be off 140 LY either way!
What is the measurement used in space?
Both measurements used for distance in space are LY (Light Years) and AU (Astronomical Unit) Respectively the measurement LY measures distance in the speed of light and our cycle of 1 year orbit, so something that is 1 LY away works like this - the light takes one earth year to reach that us from that object (usually a Sun/Star) therefore if we were to travel at the speed of light it would take us one year to reach our destination AU is measures distance by using the earth and the sun - and the basis of this is that the earth from the sun is 1 Astronomical Unit. This is mostly used to calculate distance in our own solar system, objects far out of our immediate system are measured mostly using LY
How many centimeters would represent the distance to a star that is 100 light- years from earth?
1 LY = 9.46089 x 1012 Km = 9.46089 x 1017 centimeters
How far away is the Maia nebula?
About 360 LY away.
