How long is each planets "light minute"?

Question

My teacher gave us a report to do for all the planets but one of the questions is "how long is each planet's 'light minute' "

Answer 1

Light in a vacuum travels at 299 792 458 metres per second (~186 283.4 miles/second) This means in 60 seconds, it travels 17 987 547 480 metres (~11 177 004 miles).

Now, your teacher may be asking something like "how many light minutes away from the sun is each planet from the sun" (or something like that). This means that your teacher is asking the distance from the sun to each planet expressed in terms of the how many minutes it takes sunlight to reach that planet. For example, instead of saying that earth is 148 800 000 000 metres (93 000 000 miles) from the sun, we take 148 800 000 000 metres and divide by 17 987 547 480 metres/minute. This gives us 8.27 minutes (which is the same as 93 000 000 miles divide by 11 177 004 miles/minute). This means that earth is 8.27 light-minutes from the sun. Similarly, take the number of metres, kilometres or miles from the sun each planet is, and divide by the corresponding distance (metres, kilometres or miles) light travels in one earth minute.

Answer 2

Huh? A light-minute is a light-minute. Light travels X in 60 seconds.

[added] "T" gave you a good answer. Your teacher sounds like he has trouble with language.

Answer 3

The "minute" is ONLY defined for Earth, being the 60 times the fundamental unit of time, the second:
http://physics.nist.gov/cuu/Units/units.html

Answer 4

nicely i nonetheless think of this is dumb that pluto's not a planet anymore. it takes approximately 8 minutes for the gentle to attain earth. gentle travels at approximately 186,000 miles according to 2d. flow do some math! you will discern it out.