Question

Question 7 (0.5 points) What causes the Moon to move about 12° across the sky from one night to the next (at the same time of night, of course)? O Because the Earth is turning on its axis. O Because the Moon is moving in its orbit. The Sun has also moved 15° across the sky and gravitationally pulls the Moon with it. The celestial sphere the Moon is attached to has moved 15°. O It is an optical illusion. Question 8 (0.5 points) What technique can you use to estimate angular widths of objects in the night sky? O Using the 0.5º angular width of the Moon for reference. Waiting an hour and comparing the star's new positions to their old positions. Holding your spread fingers in front of your face and comparing objects against the space between your fingers. Holding your arm extended and comparing objects against the width of your fingers and hand. Using the well-established sizes of constellations for comparison.

Answer 1

As per our honor code, we can do only a question at a time. Question - 7 Answer: correct option is a. Because the Earth is turning on its axis.