Question

what do you mean that the angle of a declination of kathmandu is 0.5 w?

Answer 1

Angles are used in studying geometrical figures so that it can be used in architecture. It is also used in scientific technology.

Answer 2

The earth's equator is tilted 23.45 degrees with respect to the plane of the earth's orbit around the sun, so at various times during the year, as the earth orbits the sun, declination varies from 23.45 degrees north to 23.45 degrees south.