The sun moves a. about one degree westward each day. The moon has an angular diameter of 0.5 . Seen from the northern latitudes, the star Polaris a. is never above the horizon during the day. The celestial equator is a. a line around the sky directly above Earth's equator. The ecliptic is a. the center line of the zodiac.
Constellation names come from a.
Latin b. Greek c. Arabic d. The magnitude scale a. originated just after the telescope was invented. Star A has an apparent visual magnitude of 13.4 and star B has an apparent visual magnitude of 15.4. 2 times fainter b. The moon and visible planets are always within a few degrees of the ecliptic.