Today, I will show you pictures of our flowers with my phone. I hope you like it.
The horizon is the apparent line that separates the surface of a celestial object from its sky when viewed from the point of view of an observer on or near the surface of the relevant body. This line divides all viewing points based on whether the intersecting body surface intersects.
The true horizon is a theoretical line, which can only be observed with any degree of accuracy when it is along a relatively smooth surface like the Earth's oceans. In many places, this line is obscured by terrain, and on Earth, it can also be obscured by the structure of life, such as trees and man-made buildings. Such interruptions with the sky result in intersections called visible horizons.