1 / 5 |
At the time of the summer solstice in the Northern Hemisphere, the North Pole is tilted approximately at what angle?

• 22.5° toward the Sun
• 23.4° toward the Sun
• 25.0° away from the Sun
• 24.6° away from the Sun

2 / 5 |
Some astronomical coordinates, such as right ascension and celestial longitude, are measured from which reference point?

• The celestial equator
• The winter solstice
• The vernal equinox
• The galactic center

3 / 5 |
What does the term “solstice” refer to?

• The points where the Sun crosses the celestial equator
• The points of greatest deviation of the ecliptic from the celestial equator
• The moments of equal day and night
• The apparent position of the Sun during a solar eclipse

4 / 5 |
Why do solstices and equinoxes occur earlier in leap years like 2024?

• Because the Earth’s orbit speeds up during leap years
• Because the Sun’s apparent path changes direction during leap years
• To ensure an even balance of seasonal durations
• Due to the addition of a leap day, which shifts the calendar alignment

5 / 5 |
Why does the earliest sunset occur a few days before the shortest day of the year?

• Because Earth’s axial tilt decreases before the solstice
• Due to the discrepancy between true solar noon and clock time
• Because the Earth’s rotation slows down near the solstice
• To allow for longer sunrises during winter