* Zenith: The zenith is the point directly overhead an observer.

* Declination: Declination is a celestial coordinate that measures a star's angular distance north or south of the celestial equator.

The Problem: A star with a declination of 10 degrees will *never* pass through your zenith.

* Equator: If you are standing on the equator, your zenith is at a declination of 0 degrees.

* Northern Hemisphere: If you are in the northern hemisphere, your zenith will have a positive declination that matches your latitude.

* Southern Hemisphere: If you are in the southern hemisphere, your zenith will have a negative declination that matches your latitude.

Conclusion: For a star with a declination of 10 degrees to pass through your zenith, you would have to be located at a latitude of 10 degrees North.