SOLAR SYSTEM

Detailed explanation-1: -A year on Earth is approximately 365 days. Why is that considered a year? Well, 365 days is about how long it takes for Earth to orbit all the way around the Sun one time.

Detailed explanation-2: -Orbital Period (days)-This is the time in Earth days for a planet to orbit the Sun from one vernal equinox to the next. Also known as the tropical orbit period, this is equal to a year on Earth. * For the Moon, the sidereal orbit period, the time to orbit once relative to the fixed background stars, is given.

Detailed explanation-3: -The Earth orbits around the sun every 365.25 days. It takes a little more than 365 days for the Earth to make a complete trip around the sun. Other planets have different orbital times. It takes only 87 days for Mercury to orbit the sun, but 12 years for Jupiter to make the journey.

Detailed explanation-4: -Due to the fact that Mercury is so close to the Sun, it only takes 88 days to orbit the Sun, much shorter than the 365 days it takes the Earth to orbit fully around the Sun!