what is the nearest star?

Answer 1

THE NEAREST STAR TO OUR SUN IS

Proxima Centauri ("Proxima" means "nearest") and it is aout 4,26 light years away (25 trillion miles). But Barnard's Star, currently 4th nearest, at 5.96 light years away will take over that role in just under 10,000 years' time.

Both are red dwarfs.

At the moment the nearest star of the trinary system of Proxima Centauri and Alpha Centauri A and B (NB this is not the same thing as Alpha Centauri and Beta Centauri) is Proxima Centauri. It is 4,26 light years away (25 trillion miles away) and the other two stars in the system are 4.39 light-years distant (about 25.8 trillion miles or 277,600 AU).

Alpha Centauri A and B orbit one another elliptically, approaching as close as 11.2 astronomical units (2×10^−4 ly) and receding to 35.6 AU (6×10^−4 ly), with a period of just under 80 years.

These two stars are about 5 to 6 billion years old. The red dwarf Proxima Centauri is about 13,000 astronomical units away from Alpha Centauri (1 ly = 63,241 AU, hence this is 0.21 ly, about 1/20 of the distance between Alpha Centauri and the Sun) and may be in orbit about it, with a period on the order of 500,000 years or more.

As they all 3 orbit one another, which is nearest to us may well change periodically in the process.

More interestingly, Barnard's Star currently 5,96 light years away and the 4th nearest to us, is heading our way. Its velocity relative to the Sun is between 139.7 and 142.7 km/s. In fact, Barnard's Star is approaching the Sun so rapidly that it will be the nearest star around AD 11,800, at a distance of 3.8 light-years.

СAN WE GO THERE?

But these are all beyond the scope of manned space flight at present. To carry food, oxygen and clothing for what might be several hundreds of generations who live and die aboard the ship is far too big a payload for current technology to handle, and the psychological problems for the passengers who never live to see the destination would be immense.

I think this is only feasible if we use cryogenics capable of resuscitating the first generation of passengers once the ship arrives and the ship is on autopilot from the moment it leaves earth.

So we would need much faster spaceships before we could even contemplate such a journey ...

Answer 2

The nearest star to the Earth is called the Sun. It's about 93 million miles away and shines through your windows.

Answer 3

The sun is the closest star to the earth. It takes light approximately 8 MINUTES to travel from the Sun to Earth.

The other star that often comes up is Alpha Centauri. Alpha Centauri is actually 4.3 LIGHT YEARS away. A light year is the DISTANCE light travels in one year. So, when traveling at the speed of light, it would take 4.3 years to reach Alpha Centauri. The speed of light is 299 792 458 meters per second!

Answer 4

the nearest star to us is the Sun, but the sister Star of the sun is call px205 and if you have a good Telescope look to the Right of the sun, once you see the sun go right, then move it up Little bit and you will see the closest star, REMEMBER if you are looking at the sun USE THE SUN FILTER'S, do not look unless you use the FILTER'S,

Answer 5

the nearest celeb equipment is very cool. 2 suns. an orange one slightly larger than our sunlight. And a yellow one, slightly smaller than ours. They orbit round one yet another each 80 years. Then there's a small pink sunlight way off in the gap. It takes a million years for it to orbit the different 2. it truly is a million/12 the size of our sunlight. There might want to be planets round all 3 suns. i imagine in the subsequent one hundred years we will have the ability to get there in 40 3 years. 10% mild %. the human beings vacationing there'll stay in a significant round greenhouse. it truly is going to likely be very exciting.

Answer 6

after sun he nearest star is Alpha Centauri.Alpha Centauri is the closest star system outside our own solar system, being 4.39 light-years distant (about 25.8 trillion miles or 277,600 AU). Proxima Centauri, often regarded as part of the system, is 4.26 light-years distant. Alpha and Beta Centauri are near to each other in angular distance as seen from the Earth, but Beta Centauri is almost 120 times more distant. Alpha and Beta Centauri are the second closest pair of first magnitude stars as seen from the Earth, and due to the effects of proper motion, they will become the closest pair around 2166, overtaking Acrux and Becrux.

Answer 7

Alpha Centauri

Answer 8

The Sun, followed by Proxima Centauri.

Answer 9

Apart from our own star, the Sun, it's Alpha Centauri.

Answer 10

There are 26 nearest stars that are closer to the earth.
the closest one is Proxima centauri which is at a distance of 4.2 light years.

visit this page for further information
http://www.astro.wisc.edu/~dolan/constellations/extra/nearest.html