Y is for…
NASA’s Picture Dictionary
Check out what Y stands for…
Year
The time in which a planet completes a revolution around the Sun.
NASA
Sentences:
Earth’s trip around the sun takes 365 ¼ days. A year on Earth is 365 ¼ days.
A year on planet Mercury is only 88 Earth days.
A year on Jupiter is almost 12 years on Earth.
Related Links:
Martian Year