ASTR 1000|61 EXAM 1 Final Questions 100% Correct Answers|2024

Does earth's axis point in the same or different direction all year round? - ️️same direction. During the spring and fall equinox the sun tilts from the sun or towards? - ️️from the sun. During the summer solstice the sun tilts away or towards the sun? - ️️towards. During the winter solstice the sun tilts away or towards the sun? - ️️away. From our view in Boulder can we see stars near the south celestial pole? - ️️No. From our view in Boulder what kind of stars are near the north celestial pole? - ️️Circumpolar stars that never set. How did the greeks explain planetary motion? - ️️-earth at the center of the universe. -heavens are perfect spherical objects. How much of the moon is always illuminated by the sun? - ️️half Regarding phases of the moon, what is waning? - ️️-moon gets smaller and sets later each day. -moon visible in late night/morning. Regarding phases of the moon, what is waxing? - ️️-moon gets full and rises later each day. -moon visible in afternoon/evening. the sun rises in the _______, crosses the _____ and sets in the _________. - ️️east, meridian, west What are circumpolar stars? - ️️stars that never set at your location. What are the four facts regarding the motion of the stars and the sun in the sky? - ️️1. stars are very far away. 2. earth rotates on its own axis. 3. earth orbits the sun. 4. earth's rotation axis is tilted with respect to the ecliptic. What are the four progressions of the seasons? - ️️-summer solstice (june 21) -winter solstice (dec 21)