1. The first point of Aries is the point where the Sun is at ? 0° declination going to northerly declinations.
2 The First Point of Aries is the position of the Sun on the celestial sphere on or about March 21
3. The plane of the ecliptic is inclined to the plane of the celestial equator by what angle? 23°27'
4. The change in the length of day becomes greater as latitude increases because of the increased ? obliquity of the celestial sphere.
5. The path that the Sun appears to take among the stars is the ? ecliptic.
6. Aphelion is the point where the Sun is ? farthest from the Earth.
7. The points where the Sun is at 0 declination are known as ? equinoxes
8. The autumnal equinox is the point where the Sun is at? 0° declination going to southerly declinations.
9. Perihelion is the point where the Sun ? is nearest to the Earth.
10. The period of the Earth's revolution from perihelion to perihelion is the? anomalistic year.
11. Which condition exists at the summer solstice in the Northern Hemisphere? The Southern Hemisphere is having winter.
12. The winter solstice is the point where the Sun is at ? maximum declination south
13.The Sun is closest to the Earth in what month ? January
14. During one synodic rotation, a body makes one complete turn relative to the ? Sun
15. The Moon appears larger in diameter at the zenith than when near the horizon. What is this called? Augmentation
16. What happens because of augmentation? The Moon appears larger as the elevation increases.
17. The Moon is farthest from the Earth at ? Apogee.
18. What condition exists at apogee ? The Earth is farthest from the Moon.
19. The Moon is nearest to the Earth at ? perigee
20. What condition exists at perigee? The Moon is closest to the Earth.
22. It is difficult to determine which limb of the Moon is fully illuminated ? when the terminator is nearly vertical.
23. The major problem with Moon sights is the ? Lack of a well defined limb at certain positions in the sky.
24. The same side of the Moon is always toward the Earth, but more than half of its surface has been seen due to libration. Libration in latitude occurs because ? The axis of rotation is tilted about 6.5" to the axis of revolution.
25. Upper limb observations of the Moon are used more frequently than those of the Sun because of the location of the Moon in the sky and the. Phase of the Moon.
