How far is a 1/1000th of a minute

[KeithH]

Whilst trying to solve a problem with my Garmin Etrex Vista HCx I took current location readings on a TOM TOM and an Audi A6 on-board GPS. All three were slightly different and it set me to wondering how far each 1/1000th of a minute actually represents at the UK's latitude/longitude?

[+mpilchfamily]

This should help.

http://jan.ucc.nau.edu/~cvm/latlongdist.html

[+Brooklyn51]

It depends on if you mean longitude, which is comprised of great circles from pole to pole and converge at each axis (in the middle latitudes of 24 to 50 degrees it will vary from 4 to 6 feet), or latitude which stays relatively fixed at about 6 feet

 

http://www.greatplainsmapping.com/index_files/mapgrid.htm

Edited August 4, 2011 by Brooklyn51

[+Markwell]

It depends.

 

http://markwell.us/geofaq.htm#Feet

 

In London around N 51° 30.000, moving 0.001 minutes in longitude (east to west or west to east) is about 3.87 feet (1.18 meters). Moving 0.001 minutes in latitude (north to south or south to north) is 6.074 feet (1.85 meters)

[+Nunavut Taidy]

Thanks for the question and the answers. I too had been wondering how to figure that out. Glad to know that 1/1000 of a minute in my neck of the woods is 1.64 ft W and 3.60 ft N.

[+dfx]

It's 6/100th of a second

[+39chevy]

11,160 miles at light speed, farther at warp 5.

[+GrateBear]

3/5ths of a mile in 10 seconds.