by 3 hours ago
ANSWERS: 14
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One light year is 186,000 X 60 X 60 X 24 X 365 miles. Light travels 186,000 miles per second, and there are 60 seconds in a minute; 60 minutes in an hour; 24 hours in a day; and 365 days in a year. That's a total of 5,865,696,000,000 miles, which is in kilometers multiplied by 1.60934 = 9,439,899,200,640 km...
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Actually, a light year is 15 Earth years. So I guess your equation should be multiplied by 15.
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The formula listed works and is correct, but who can remember let alone translate all of those digits. For conversational purposes 6 trillion miles works for me!
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Not to be too picky but in 2004 it was a little further than the regular answer - that was a leap yr
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A spaceship traveling at half the speed of light (2,932,848,000,000 miles per Earth year) will take approximately nine Earth years to come to Earth from a planet in Alpha Century (the nearest solar system). A spaceship traveling from the Earth to a planet in Alpha Century at ten times the speed of our current NASA spacecraft (40,000 x 10=400,000 miles per hour) will take 7,500 Earth years to reach its destination.
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A light year is a unit of distance (not time!) equal to the speed of light in a vacuum times the duration of one Julian year--in other words, how far light could travel in a vacuum in a year, assuming no influence by gravitational or magnetic fields. It's used, mostly by laypeople, to discuss the differences in stars. (Professionals prefer the parsec.) So how far is that? Exactly 9,460,528,410,545,436.2688 meters, and when I say "exactly" I mean it--the meter is defined relative to the speed of light in a vacuum (specifically, as the distance it can travel in 1/299,792,458 of a second), and as the number of seconds in a year is a fixed constant, you can't get more precise than that. You can express the same value slightly less precisely, though, as 5,878,625,373,184 miles. For what it's worth, a light year is also about 63,241.077 astronomical units, which are the defined as the average distance between the earth and the sun. That's even less precise than the above, though, seeing as the currently accepted length of one AU comes with a 30-meter margin of error.
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In miles, it would be 5,865,696,000,000 OR fife trillion, eight-hundred sixty-five billion, six-hundred ninety-six million miles.
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In kilometers I got (in standard form using 3.0*10^5 km/s) 1 year= 31,556,926 seconds. Distance = Speed*Time Distance = 300,000*31,556,926 Distance = 9.4670778*10^12 km/s
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I found that one year is 365 days, 5 hours, 46 mins, 48 secs. If light travels at 299,972,458 metres/second, that equates to 186,291.0334 miles/second. 365d,5h,46m,48s, works out at 31,556,926 seconds. multiply them and 1 light year equals 5,878,772,355,467.3284 miles. i think!!
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The distance that light travels in a vacuum in one year, approximately 9.46 trillion (9.46 × 1012) kilometers or 5.88 trillion (5.88 × 1012) miles.
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so how far in miles was the star trek voyager from earth?
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a light year is 5,874,601,673,544 miles as the spead of light is 670,616,629.4 mph or 186,282 miles per second so 670,616,629.4 X 24 X 365 = 5,874,601,673,544 per year
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a light year is 5,874,601,673,544 miles as the spead of light is 670,616,629.4 mph or 186,282 miles per second so 670,616,629.4 X 24 X 365 = 5,874,601,673,544 miles per year or 9,454,231,457,301.3 km
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A light year is the distance that a beam of light travels over the course of one calendar year. It is equal to about 5,865,696,000,000 miles.
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