i dont know what is LIGHT YEAR AWAY
2007-04-28 20:54:07 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
One light year is the distance that light travels in one year (365 days). The speed of light is constant whether it is traveling through a vacuum or or an atmosphere, about 300,000 km per second. Therefore a light year is a (very large) constant distance that has nothing to do with where you are standing and what you are measuring.
2007-04-28 21:00:24 · answer #1 · answered by Max 5 · 0⤊ 0⤋
A light year is a measure of distance, not time. Light travels at 186,000 miles per second. A Light Year is the distance that it would travel in one year.
2007-04-28 21:06:16 · answer #2 · answered by liberty11235 6 · 1⤊ 0⤋
The SR-71 Blackbird is one of the fastest airplanes ever built. It flies at over 3 times the speed of sound, or about 2,300 miles per hour (1020 M/s or 3700 kph). It would take the Blackbird around 290 THOUSAND years to fly one light year or just over 1 MILLION years to fly to Proxima Centauri, the nearest star to our planet.
The fastest spacecraft we have ever sent on a tour of the heavens (Helios 1 and 2 were faster but they just spin around the sun) was Voyager 1 which is still out there flying off at 38,600 miles/hour. It would take Voyager over 17 thousand years to travel one light year or over 72,000 years to make it to Proxima. Do you get it now? Space is HUGE!
2007-04-29 01:21:53 · answer #3 · answered by eggman 7 · 0⤊ 0⤋
A light-year or lightyear (symbol: ly) is a unit of measurement of length, specifically the distance light travels in vacuum in one Julian year.
2007-04-28 21:19:46 · answer #4 · answered by paul13051956 3 · 0⤊ 0⤋
9.4605284 × 10^15 meters
2007-04-28 22:08:25 · answer #5 · answered by Brody 3 · 0⤊ 0⤋
9.4605284 × 10^15 meters
2007-04-28 21:02:36 · answer #6 · answered by SuNiL 3 · 0⤊ 0⤋
Nearly 6 trillion miles, for example, saying the andromeda galaxy is 2.5 million light years away , means its 2,500,000 * 6,000,000,000,000 miles away (roughly)
2007-04-28 21:08:33 · answer #7 · answered by Anonymous · 0⤊ 0⤋
the distance traveled in one year at the speed of light.
2007-04-29 02:49:36 · answer #8 · answered by neutron 3 · 0⤊ 0⤋
Miles, metres and lightweight years degree distance. - Miles is the unit used interior the imperial equipment. - Metres is the unit used interior the metric equipment. - mild years is an astronomical term that describes the gap that mild travels in a vacuum in one year.
2016-12-29 14:55:32 · answer #9 · answered by londa 3 · 0⤊ 0⤋