Spherical Astronomy Problems And Solutions [2021] May 2026

These problems and solutions demonstrate some of the fundamental concepts in spherical astronomy, including celestial coordinates, time and date, parallax and distance, and orbital elements.

Problem 1: Celestial Coordinates Problem: Determine the celestial coordinates (right ascension, declination) of a star located at an altitude of 60° and an azimuth of 120° at a latitude of 30°. spherical astronomy problems and solutions

The celestial coordinates of the star are approximately α = 2.5 h and δ = 40.5°. Problem: Determine the local sidereal time (LST) at a longitude of 75° W on January 15, 2023, at 10:00 PM local time. These problems and solutions demonstrate some of the