That's like asking "What is the next distance less than 47.3 miles ?",
or "What is the next lighter weight after 1851/4 pounds ?"
There is no minimum-size "step". The "next" one can be as close to 15 degrees as
you want it to be. And no matter how close it is, somebody can always come along
and slip one in that's even closer.
There is no standard set of "lines" of latitude or longitude. That's definitely the
biggest, most universal misconception we see in this category of questions.
15 degrees W (15 degrees west) 30 degrees W (30 degrees west) and so on.
It is fifteen degrees East. (15 degrees East of the Prime Meridian. The Prime Meridian being zero longitude).
15 degrees E (15 degrees east) 30 degrees E (30 degrees east) and so on.
No point on Earth can have both an east and a west coordinate. Since you calledthe first number a "latitude", it must be a north or south latitude.If you meant to say 15 North / 12 west, the point is located in the Pacific Ocean,about 1,345 miles due south of Goleta, California, and about 1,820 miles due westof the coast of Mexico.If you meant to say 15 South / 120 west, that point is also in the Pacific Ocean,about 3,420 miles south of Goleta, and 2,970 miles due west of the coast of Peru.
They are also called Lines of LongitudeThey measure the angles east or west of the prime meridianThey run from the North Pole to the South PoleEvery meridian of longitude is the same length -- 1/2 of the Earth's polar circumference, roughly 12,410 miles.All meridians of longitude meet at the north pole and at the south pole.Every meridian of longitude crosses some part of Antarctica.The key meridians are the Prime Meridian at 0 degrees and the 180th meridian (or anti-meridian) which is at 180 degrees east or west of the Prime Meridian.The 'anti-meridian' is at both -180 degrees and +180 degrees on the map which is the same imaginary line where the east and west hemispheres meet. It joins the north and south poles, and runs through the Pacific Ocean.
Nae nae or shabooyah. Ok that was the answer ask some one.
The prime meridian is at 0 degrees longitude, and each 15 degrees of longitude represents one hour of time difference. Therefore, a location at 77 degrees east is 77/15 = approximately 5.13 hours ahead of GMT. When it is 2 PM at the prime meridian, it will be around 7:08 PM at 77 degrees east.
That's like asking "What length is next on a ruler after 15 inches ?" There may be only 1 mark on the ruler each inch, but that's certainly not all the lengths there are. Similarly, there may be a 'line' drawn on your map or globe every 15 degrees ... or every 10 degrees, or every 20 degrees ... but that's certainly not all the longitudes there are. There is no standard 'set' of longitudes. Every possible longitude is represented by a meridian, and there are an infinite number of them. Whatever longitude you name east of 15w, no matter how close to 15w it may be, I can always fit another one in between them, that's closer to 15w than the one you named. And every one of them has a meridian. There is no 'next' one.
If it is 4 a.m. at 15 degrees east, we need to calculate the time difference with 30 degrees west. The Earth is divided into 360 degrees of longitude, with each hour representing 15 degrees. Traveling from 15 degrees east to 30 degrees west is a difference of 45 degrees, which is equivalent to 3 hours. Therefore, if it is 4 a.m. at 15 degrees east, it would be 1 a.m. at 30 degrees west.
They're labeled E (or W) to show that they're (E)ast or (W)est of the prime meridian (which is the line of longitude passing through Greenwich Observatory near London). 15 degrees East and 15 degrees West are the same distance from the prime meridian, but in opposite directions.
As you move east from the Prime Meridian, time increases by one hour for every 15 degrees of longitude you cross. This is because Earth rotates 360 degrees in 24 hours, so each hour represents 15 degrees of longitude.
The meridian of 15 degrees west longitude traverses the western, northern, and southern hemispheres.