Speed of light is 299,792,458 metres per second
There are 31,356,000 seconds in a year of 365 days ie not a leap year.
A light year is therefore 9,454,254,955,488,000 metres
Mach 1 is not constant as it depends on atmospheric composition and temperature but for this calculation I am using 340.29 metres per second.
At Mach1 it would take 27,782,935,012,748 seconds to travel 1 light year.
In more manageable terms this is 880,991 years.
I hope this helps - it made my brain ache !!!
Proxima Centauri - Earth ... 4,223 l.y. (267 070 astronomical units)
Voyager 1 speed: 3,58 AU/year
267 070 / 3,58 = 74 600 years (1977)
74 565 years (2012)
Voyager 1 (current distance from Earth is 119 - 120 AU) will reach Proxima Centauri in 74 565 years.
Ooh. Long time. In 35 years, V2 has only gotten about 15 light-minutes away. A back of the envelope calculation suggests that another 1.2 million years ought to do it.
Edit :It's a lot more than 15 light minutes away. Jupiter is further than that.
It doesn't make sense to convert that; mph is a unit of speed; whereas light-year is a unit of distance.
At 150000 miles per hour, it would take 39.2 million years to travel one light year.
in 17,535 years.
37,256.5 years.
I think that proxima centauri is approximately 4 light years away from the sun. One light year is equal to 5,865,696,000,000 miles. So, 5,865,696,000,000x4 = 23,462,784,000,000 Proxima Centauri is approximately 23,462,748,000,000 miles away from the sun.
All three members of this 'triple-star' system ... Alpha Centauri, Beta Centauri, and Proxima Centauri ... are listed as being located roughly 4.2 light-years from our solar system.
Alpha Centauri is a triple star system. Alpha Centauri A, B & C or Proxima Centauri. Alpha Centauri A & B are 4.37 light years from the Earth whereas Alpha Centauri C is 4.243 light years.
4.2 light years. Which equals to... 8765.81 x3600 x 300,000 = 9,467,074,800,000 Kilometers away from Earth
Proxima Centauri is about 4.2 light years from Earth.About 4 x 1013 kilometers (40,000,000,000,000)About 2.5 x 1013 miles (25,000,000,000,000)About 265,606 AUAbout 1.3008808 ParsecsIf the Earth was only an inch from the Sun, at the same scale, Proxima Centauri would be 4.2 miles away.It is the closest star to us, after the Sun.
Aprox 4.2 Light years
About 4.2 light years
Roughly 4.3 .
Do you mean light years? well its 4.26 light years away
I think that proxima centauri is approximately 4 light years away from the sun. One light year is equal to 5,865,696,000,000 miles. So, 5,865,696,000,000x4 = 23,462,784,000,000 Proxima Centauri is approximately 23,462,748,000,000 miles away from the sun.
Toliman (a.k.a. Rigil Kentaurus, or Alpha Centauri), at a distance of 4.3 light-years. Actually this is a multiple star; one of its components, Proxima Centauri, is at a distance of 4.2 light-years.Toliman (a.k.a. Rigil Kentaurus, or Alpha Centauri), at a distance of 4.3 light-years. Actually this is a multiple star; one of its components, Proxima Centauri, is at a distance of 4.2 light-years.Toliman (a.k.a. Rigil Kentaurus, or Alpha Centauri), at a distance of 4.3 light-years. Actually this is a multiple star; one of its components, Proxima Centauri, is at a distance of 4.2 light-years.Toliman (a.k.a. Rigil Kentaurus, or Alpha Centauri), at a distance of 4.3 light-years. Actually this is a multiple star; one of its components, Proxima Centauri, is at a distance of 4.2 light-years.
All three members of this 'triple-star' system ... Alpha Centauri, Beta Centauri, and Proxima Centauri ... are listed as being located roughly 4.2 light-years from our solar system.
Alpha Centauri is a triple star system. Alpha Centauri A, B & C or Proxima Centauri. Alpha Centauri A & B are 4.37 light years from the Earth whereas Alpha Centauri C is 4.243 light years.
Proxima Centauri is the closest star to our Sun, at 4.2 LY. Curiously, even though it is the closest, it is not visible to the naked eye! Proxima Centauri is a tiny red dwarf star, and requires a fair-sized telescope to see. For a long time, many people thought that the closest star was Alpha Centauri, which isn't entirely incorrect. The Alpha Centauri system is actually a double star with a very distant triple; Alpha Centauri A (also known as Rigel Kent) and Alpha Centauri B form a binary system, and Proxima, Alpha Centauri C, is very distantly linked at about 0.3 LY.
The Sun is "really" the closest star at 150,000,000 km (93,000,000 miles)Proxima Centauri is the closest star to us, at a distance of approximately 4.2 light years.(Proxima is Latin for "next to" or "nearest to")Alpha Centauri is the closest star system to us at a distance of approximately 4.3 light yearsThe Centauri system is a triple star system Centauri A and B have a mean separation of 11 AU's and are similar in size and temp to the Sun.Centauri C is a red dwarf it can not be seen with the unaided eye and was not discovered until 1918See related link for more information.
4.2 light years. Which equals to... 8765.81 x3600 x 300,000 = 9,467,074,800,000 Kilometers away from Earth
Proxima Centauri is about 4.2 light years from Earth.About 4 x 1013 kilometers (40,000,000,000,000)About 2.5 x 1013 miles (25,000,000,000,000)About 265,606 AUAbout 1.3008808 ParsecsIf the Earth was only an inch from the Sun, at the same scale, Proxima Centauri would be 4.2 miles away.It is the closest star to us, after the Sun.