How long does light take to travel a distance of one light-year?
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1 year
That is where the expression light-year comes from.
one year travelling with the speed of light. light-year is a unit measuring distance, not time!
A light-year is approximately equal to
9,460,528,404,879 km (about 9.461 Pm)
5,878,482,164,161 statute miles[1]
63,239.7263 AU (about 63,240 AU)
0.306601394 pc
there ya go. also light takes 365 days to travel one light year and sometimes 366
No time at all, from the photon’s perspective. It sees the distance as infinitely compressed.
one parsac
one year
that’s what a light year means
the distance light travels in one year
One year. A light year is the distance light travels in one year. Maybe you were thinking of „how far does light travel in one light year.” That’s entirely different, and I don’t know the answer.
Light takes 1 year to travel this far…that’s where the name comes from.
To get some sort of perspective:
Light moves at about 300,000 km (180,000 Miles) per second.
So 1 light year is (((300,000 x 60) x 60) x 24) x 365.25 which is roughly (deep breath) 9,500,000,000,000 km or 5,700,000,000,000 miles.
It’s about the same distance as any car journey with two arguing kids in the back!
One year. A light year is the distance light travels (..in a total vacuum) in one year.
1 year, of course. Are you pulling our collective leg!
one year, light-year means the distance light travels in one year
I really hope you’re not serious….
4 Days and 3 Hours. That’s why it’s called a light-year.
Is this during a leap year?
I think light can go one light-year in LESS than one whole leap year.
Because light is travelling faster during leap years, that’s why they’re called LEAP years.
(not)
1 year
A year, thats why they call it a light year.