The equator is a line of latitude that circles the Earth at 0 degrees. It divides the Earth into the Northern and Southern Hemispheres.

There is no such thing as an "equator of half the Northern Hemisphere".

Here's why:

* The equator is a single, fixed line. It's not a variable concept.

* The Northern Hemisphere is defined by the equator. Everything north of the equator is part of the Northern Hemisphere.

Perhaps you're thinking of a different concept? If you can clarify your question, I can help further.