AY 101- Final Exam Guide - Comprehensive Notes for the exam ( 85 pages long!)
Document Summary
Celestial equator: the extension of the earths equator onto the celestial sphere: divides the sphere into a northern and southern sphere, can project the earth"s poles (called celestial pole; north celestial pole and south celestial pole) In contrast, longitude has no impact on the stars we can see at night: the stars in bagdad are the same stars as the ones in tuscalossa because we are both 33 degrees latitude but different longitudes. Ecliptic: the apparent path of the sun on the celestial sphere: the ecliptic and the equator only meet twice a year, 23. 5 degrees. Along the ecliptic, there are 12 zodiacal constellations, and the sun spends about a month in each. 1/22/2018 5:58:00 pm: what causes the seasons, seasons are caused by the tilt of the earth"s rotation axis relative to its orbit, the celestial equator is tipped 23. 5 degrees to the ecliptic plane.
