What are some efficient ways to figure out your latitude and longitude in the Southern Hemisphere? (Can't use internet or maps)
What are some efficient ways to figure out your latitude and longitude in the Southern Hemisphere?
What are some efficient ways to figure out your latitude and longitude in the Southern Hemisphere? (Can't use internet or maps)
In the Northern hemisphere, navigators usually used Polaris. Using a sextant, they measured the angle between Polaris and the horizon. The angle would be very close to the latitude of their current position.
In the Southern hemisphere, they did the same thing but with the south celestial pole. The problem is that there’s no bright star close to the south celestial pole, unlike Polaris in the North. So, they used the nearby Crux and Pointer stars to determine the approximate location of the south celestial pole. The angle between the south celestial pole and the horizon is the same as the latitude of the observer.
how do I use Crux and said 'pointer' do find the SCP? And what is the margin of error of this method?
and when I don't have access to the internet?
GPS doesn't require internet access.
This. All you need is cell service and your phone can combine it with GPS to get a pretty good approximation of where you are
You don't need cell service. It doesn't make GPS any more accurate. Why does no one on an outdoors board seem to know how GPS works?
>doesn't make GPS any more accurate
lol, okay
It really doesn't. Using cell towers or even BSSIDs is so much less accurate than GPS that it doesn't increase accuracy at all.
>leave reception, shitty phone GPS immediately goes to shit, lags and takes forever to get a proper fix
>nothin pers-
>ancillary services which use cell data do not work
>blames this on GPS
>goalpost: moved
What goalpost? It is objective fact that GPS itself does not use cell service to function, map data and navigation is not GPS
It doesn't take that long. Downloading ephemeris or SBAS data from the internet instead of receiving it from the satellites is just a way to make getting a fix faster when the internet is available, but doesn't make it any more accurate. If a phone GPS is slower it's due to the worse antenna, but it still works just fine unless you really go out of your way to get the worst signal possible.
Be nice if phone companies would put halfway decent chips in their phones since everybody lives on them, but noooo, as soon as I lose reception the GPS goes to """low accuracy"""
[and the whole rest of the thread]
Ok guys, for whatever reason, GPS doesn't count. Consider I didn't bring my cellphone
Well without internet, maps, GPS or a cell phone, you're looking at using a watch and a protractor
Good, and how do I use them? Considering that the daytime line is distorted according to seasons, how do I use the watch to figure out longitude? What do I use as reference to measure the latitude in the Southern Hemisphere?
This is how we do in straya. It's only to work out your cardinal directions, dunno how accurate it is for exact south.
If you are posting on PrepHole then you can use Internet.
GPS
usually id just google it
I just know where I am all the time because I never leave nz
It's astonishing the level of stupidity in the general population. GPS functions completely without internet or cell coverage. It works in airplane mode where you phone isn't allowed to transmit anything.
GPS relies solely on satellites in the sky beaming continual signals onto the earth and your phone picking up at least three of them and doing some calculations to work out your precise location in three dimensions based on the time it took to receive the signal and prior knowledge of their geosynchronous position.
If you have trouble with GPS with a "poor signal" then it'll be difficulty downloading maps (so you should download them beforehand for offline use).
Or you are occluded by high terrain, which doesn't usually happen when PrepHole on mountains, it normally happens in cities near tall buildings, but it could happen in deep valleys depending on topography.