2006-10-31 05:57:09 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
In round numbers:
186,000 miles per second
or
300,000 kilometers per second.
2006-10-31 05:59:35 · answer #1 · answered by campbelp2002 7 · 0⤊ 0⤋
In metric units, the speed of light is exactly 299,792,458 meters per second (1,079,252,848.8 km/h, or 186,282.397 miles per second). Note that this speed is a definition, not a measurement, since the fundamental SI unit of length, the meter, has been defined since October 21, 1983 in terms of the speed of light: one meter is the distance light travels in a vacuum in 1/299,792,458 of a second.
2006-10-31 14:03:52 · answer #2 · answered by Keith P 7 · 0⤊ 0⤋
Not to nitpick... but the speed of light is constant.. around 186,000 miles per second... regardless of gravitation.. reflection... or anything, for that matter.
2006-10-31 18:17:56 · answer #3 · answered by Anonymous · 0⤊ 1⤋
I believe the distance that light can travel from one spot to another in a straight line in one year is around 60 trillion miles. If im wrong.. my bad... just guessing from when i had astonomy in college.
2006-10-31 15:27:41 · answer #4 · answered by NoMercy 1 · 0⤊ 2⤋
"twelve million miles a minuet and that's the fastest speed there is"
I love that that song answers so many astronomy questions.
quickly... go memorize it and quote it obsessively with me!
http://www.guntheranderson.com/v/data/galaxyso.htm
2006-10-31 14:49:25 · answer #5 · answered by iMi 4 · 0⤊ 1⤋
186,282.39705122 miles per second.
670,616,629.38439513 miles per hour.
2006-10-31 14:13:38 · answer #6 · answered by Anonymous · 0⤊ 0⤋