To find a location using coordinates on Google Maps, follow these steps:
- Open Google Maps on your computer.
- Type "coordinates" in the search box.
Here are some approved formats for coordinates:
- Decimal degrees (DD): For example, 41.40338 and 2.17403.
- Degrees, minutes, and seconds (DMS): For example, the GPS location is 41°24’12.2"N 2°10’26.5"E.
- Minutes and decimal degrees (DMM): For example, the numbers are 41 24.2028 and 2 10.4418.
To insert coordinates on Google Earth, use the following steps:
- Use the coordinates for the search to access Google Earth.
- In the left panel, enter the coordinates in the search box using one of the following formats:
- Decimal degrees like 37.7° and -122.2°.
- The coordinates will be displayed in the bottom right corner as Google Earth zooms in on that location.
Google Maps provides coordinates in the "Decimal degrees" format, which is compatible with WGS84. To set the coordinate recognition to "Decimal degrees" in Google Earth, follow these steps:
- Go to the "Tools" menu.
- Set the coordinate recognition to "Decimal degrees" in Google Earth.
Coordinates are represented using the sexagesimal system. For example, the coordinates of the Colosseum are N 41° 53′ 24′′ E 12° 29′ 32′′. Sometimes, for more precise directions, the DMS notation is used, but decimal numbers can also be used. For example, the GPS location is 41°53’24.8280 and 12°29’32.0136.
Various notations can be used to display GPS coordinates, including the use of + and – signs to indicate north, south, east, and west. The international notation for degrees, minutes, and seconds (DMS) is used, such as 41° 53′ 25.36" and 12° 29′ 32.70.
You can enter the coordinates on Google Maps by typing them into the search bar in the following formats:
- Degrees, minutes, and seconds (DMS): GPS coordinates are 41° 53′ 24.8", 12° 29′ 32.8" (or 41° 53′ 24.8"N 12° 29′ 32.8"E).
- Decimal minutes and degrees (DMM): The GPS address is 41° 53′ 24.7842" and 12° 29′ 32.7618.
Longitudes and latitudes, also known as geographic coordinates, are angular measurements that can be measured in degrees. Decimal numbers are also required in this case. The preferred method is WGS84-G, which represents geographic coordinates [latitude, longitude] in WGS84 in decimal degrees with 5 decimals.
Latitude can be calculated by measuring the height of the North Star or the sun on the horizon, expressed in degrees. A sextant can be used for this measurement. The height of the southern celestial pole, which is found on the horizon through the Southern Cross, is used as a reference in the southern hemisphere.
To find UTM WGS84 coordinates using Google Maps, follow these steps:
- Right-click on the point.
- Select "What’s here" to find the coordinates displayed below.
- The coordinates in the box can be clicked, and a new window will open on the left summarizing them using both the DMS and WGS84 systems.
To determine the coordinates of a topographic point, the x-coordinate can be calculated using the formula x = rcos(t), and the y-coordinate can be calculated using the formula y = rsin(t). This projection of the point along the Cartesian axes is also included.
The meridian angle between the equator and point P can be measured to determine the latitude of a place. This measurement corresponds to the angle’s amplitude from the center and can range from zero (if P is on the equator) to 90 degrees (if P is at a pole).
Solar declination refers to the angle formed by the Sun’s rays with the Earth’s equatorial plane. It is positive if the Sun is above the plane and varies between +23°27′ (summer solstice, June 21) and -23°27′ (winter solstice, December 21).
To calculate right ascension, subtract the height of the star h from a right angle (vertical and horizontal separated). The right ascension of stars towards the meridian coincides with sidereal time.