Why can certain stars sometimes be identified as eclipsing binary stars?

Certain stars can be sometimes identified as eclipsing binary stars because they share a single point of gravity which they orbit around. Along with that, their horizontal orbital plane is the same as that of our planet.

Explanation:

The term eclipse refers to the casting of a huge shadow of one celestial object over the other. This phenomenon usually occurs when a celestial object blocks the passage of light falling on a celestial body and casts a shadow instead. Same happens with the eclipsing binary stars. The binary stars that share a single orbit cast shadows on each other and appear like eclipsing binary stars.