Other methods What is latitude and longitude Based on spherical model what quantities might be measured How does the rotation of the earth appear when you look at the stars? Concept of astronomical coordinates 02/11/02 12.540Lec0202/11/02 12.540 Lec 02 12 Other methods • What is latitude and longitude • Based on spherical model what quantities might be measured • How does the rotation of the Earth appear when you look at the stars? • Concept of astronomical coordinates