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Forums › Off topic › Where's North on Google Maps?
geekIT

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#302099 28-Oct-2022 13:45
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I've always assumed that when you pull up Google Maps, due North will be at top center of the screen.

 

The old mapping compass I've had for years disagrees with this assumption, so I just bought a second compass on Trade Me. But now they're both pointing in the same direction, some 20/30 degrees different to my assumed Google Maps north. BTW, the compasses are nowhere near large metal objects.

 

Comments?




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PeterReader
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  #2989229 28-Oct-2022 13:45
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Hmmmm. Here we go.




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nbroad
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  #2989232 28-Oct-2022 13:49
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https://teara.govt.nz/en/map/9217/magnetic-declination-in-new-zealand

 

 

eracode
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  #2989233 28-Oct-2022 13:51
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PeterReader:

 

Hmmmm. Here we go.

 

 

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kobiak
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  #2989234 28-Oct-2022 13:56
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true north != magnetic field north.

 

google and other maps points to true north.




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floydbloke
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  #2989249 28-Oct-2022 14:47
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kobiak:

 

true north != magnetic field north.

 

google and other maps points to true north.

 

 

What do Tom Cruise and a compass have in common?😆




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eracode
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  #2989259 28-Oct-2022 15:06
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floydbloke:

 

What do Tom Cruise and a compass have in common?😆

 

 

Too good to be true?

 

He’s a deviant?

 

 




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MadEngineer
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  #2989325 28-Oct-2022 17:32
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They used to fortify viagra with iron supplements… it was great until they found everyone started pointing north.




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Geektastic
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  #2989332 28-Oct-2022 17:49
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floydbloke:

kobiak:


true north != magnetic field north.


google and other maps points to true north.



What do Tom Cruise and a compass have in common?😆



Magnetic personalities?





eracode
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  #2989365 28-Oct-2022 20:20
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floydbloke:

 

kobiak:

 

true north != magnetic field north.

 

google and other maps points to true north.

 

 

What do Tom Cruise and a compass have in common?😆

 

 

Which sort of compass are you thinking of - the deviant, non-true navigation aid or the other type with a small prick pointing downward and that goes round in circles?




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Tinkerisk
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  #2989372 28-Oct-2022 20:43
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kobiak:

 

true north != magnetic field north.

 

google and other maps points to true north.

 

 

They generally point to reference north of the relevant geodetic system of the map in use. For google and aviation, it is WGS84 but there are more than 200 different geodetic systems in the world and you need to double check it.

 

The positions on a (paper) map and the GPS only match if both use the same reference system. Maps also often have the UTM as a reference.

 

 




     

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MadEngineer
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  #2989502 29-Oct-2022 13:44
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Here is North, on google maps:




https://maps.app.goo.gl/GpEoans7m7beexRH6?g_st=ic




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geekIT

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  #2989567 29-Oct-2022 17:51
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Thanks to everyone who provided informative, non-pueral answers to my query.

 

Which got me thinking: When I pull up the Met Service map and it says 'Howling gales from the North', which north is being indicated?

 

 




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rscole86
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  #2989589 29-Oct-2022 20:06
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Based on this, I'd suggest True North.

https://airplaneacademy.com/are-winds-reported-in-true-or-magnetic-headings/


https://scientificsales.co.nz/blog/true-north-or-magnetic-north/

eracode
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  #2989591 29-Oct-2022 21:09
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floydbloke:

 

What do Tom Cruise and a compass have in common?😆

 

 

@floydbloke Can’t resist a bit more puerility (definitely not ‘peurality’). OK, I give up - what do Tom Cruise and a compass have in common?  




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eracode
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  #2989593 29-Oct-2022 21:34
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MadEngineer: Here is North, on google maps:

https://maps.app.goo.gl/GpEoans7m7beexRH6?g_st=ic

 


Close, but no cigar:

 


https://maps.app.goo.gl/YCqQ39ofEJkwqvn39?g_st=ic




Sometimes I just sit and think. Other times I just sit.

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