2006-10-27 10:16:54 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
An astronomical unit is the distance from the earth to the sun.
So the answer is a light year.
2006-10-27 10:21:13 · answer #1 · answered by Anonymous · 2⤊ 1⤋
a light year. an astronomical unit is the distance from the earth to the sun. It takes light from the sun about 8 minutes to reach the earth. A light year is the distance light will travle in one year.
2006-10-27 10:30:58 · answer #2 · answered by Dre 2 · 0⤊ 0⤋
1 Astronomical Unit = 1.58128588 × 10^-5 light years
So a light year is much much bigger!
In fact 1 AU is the mean radius of the Earths orbit.
Hope this helps.
2006-10-27 10:22:11 · answer #3 · answered by Stuart T 3 · 1⤊ 0⤋
A light year is greater. An AU is the distance from Earth to the sun. A light year is the Distance light travels in a year. Au is equal to about 93,000,000 miles, while a light year is equal to 5,880,000,000,000 miles.
2006-10-27 10:24:36 · answer #4 · answered by ? 1 · 1⤊ 0⤋
A light year IS an astronomical unit!
2006-10-27 10:18:50 · answer #5 · answered by the_pharaoh109 4 · 0⤊ 3⤋
a light year is much greater. an au is the distance from the earth to the sun. it only takes light 8 minutes to reach earth from the sun and that distance is about 93,000,000 miles. the nearest star is alpha centari which is roughly 4.5 light years away. so, light from the sun is only a quarter of the way to the nearest star in one year. this gives you an idea of how huge our universe is in comparison to our solar system. one of the closest galaxies is 2 million light years away. and it is considered close.
2006-10-27 13:00:41 · answer #6 · answered by timespiral 4 · 0⤊ 0⤋
Light year of course
2006-10-27 10:48:47 · answer #7 · answered by Dobrancky B 1 · 0⤊ 0⤋
Light year. A parsec is a greater distance still.
2006-10-27 10:42:13 · answer #8 · answered by Anonymous · 0⤊ 0⤋
1 a.u. ≈ 8.3 light-seconds. There are as many light-seconds in a light-year as there are seconds in a year., so
1 a.u. <<<<< 1 light-year
2006-10-27 10:30:31 · answer #9 · answered by Helmut 7 · 0⤊ 0⤋
This is a really simple question that you can answer yourself just by looking up those two terms.
2006-10-27 10:21:50 · answer #10 · answered by kris 6 · 1⤊ 0⤋