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Distance for degrees, minutes, seconds on a map?
Can anyone define the distance at the equator (such as miles or feet, etc.) for a degree, minute, second and an arcsecond is on a map or globe? I know it will vary the further you go away from the Equator, but give me your best estimate. If you have a website, that will also help. I'll check back in 1 hour for answer. It's 1:25 pm PST right now. Best answer will definitely get the points. Promise... Thanks
Apparently, I have to wait 4 hours to award the points. Will come back then to give 'em out. Thanks!
2 Answers
- krisLv 61 decade agoFavorite Answer
You can figure this out. Find the radius of Earth and multiply it by 2*pi (or find the diameter and multiply by pi) to find the Earth's circumference. Then divide that number by 360 (number of degrees in a circle) to find how "long" a degree is. Divide that by 60 (number of minutes in a degree) to find how long a minute is. And finally divide that by 60 (number of seconds in a minute) to find how long a second is.
- Keith PLv 71 decade ago
One arcminute of latitude, or one arcminute of longitude at the equator, is approximately equal to 1 nautical mile. (The distance of the nautical mile, 1852 meters, was chosen to be as close as possible to this).
Therefore, one degree = 60 nautical miles = 69 statute miles = 111 km.