Author Topic: sat-nav lat/long  (Read 10998 times)

Offline Lawnmower Man

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Re: sat-nav lat/long
« Reply #15 on: May 18, 2007, 02:27:45 am »
0.95629  Degress is 57.38 Minutes Or 57 point 38 Minutes.
0.38 Minutes is 22.64 Seconds.

Am I missing something here?


I'll have another go.
  47.57.21.87N  47 degrees 57 minutes and 21.8 seconds North.  I think we both agree that. 
It's in the form  DD.MM.SS.ss   

Now  Lat 47.95629 N  is in the form  DD.ddddd

See http://openev.sourceforge.net/app/preferences.html  I'm not just making this up.

Quote from: jjkt15
Therefore they must be two seperate roundabouts 38.5miles apart or 77km!!!!!

I think you are saying there    47.95629 - 47.57.21.87 = 38.5

But you not subtracting like from like.

Half a degree is 30 minutes.
Now we can write half as 1/2 degree,  0.5 Degrees or 30 Minutes.
So 0.5 Degrees = 60 minutes x 0.5 = 30 Minutes.
Therefore  0.95629 Degrees = 60 minutes x 0.95629 = 57.3774 Minutes

Now we have 0.3774 Minutes
So Again we have.
60 Seconds x 0.3774 = 22.64 Seconds.

So we have 47 Degrees 57 Minutes and 22.64 Seconds.   So pretty close.

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Offline lynxd67

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Re: sat-nav lat/long
« Reply #16 on: May 18, 2007, 08:03:21 am »
I think you are all correct. Since the alterations here the Houx Annexe roundabout is 1 mile round now ;D

Offline alibongo

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Re: sat-nav lat/long
« Reply #17 on: May 18, 2007, 08:14:19 pm »
A 1 mile oval Exellent ;D ;D
been there done that doing it again !