Question

Q. Show that the right ascension(alpha) and declination (delta)
of the sun will always be connected by relation
tan (delta) = tan(epsilon) a(alpha).(epsilon) being the obliquity of
the ecliptic.​

Answer 1

Answer:

In astronomy, a celestial coordinate system (or celestial reference system) is a system for specifying positions of satellites, planets, stars, galaxies, and other celestial objects relative to physical reference points available to a situated observer (e.g. the true horizon and north cardinal direction to an observer situated on the Earth's surface). Coordinate systems can specify an object's position in three-dimensional space or plot merely its direction on a celestial sphere, if the object's distance is unknown or trivial.