Okay, I'm doing this project in school and I need to create a calendar for a planet that has 687 Earth days and it asks if I need to create a leap year, the planet is tilted at an angle of 23.5 degrees and if you need anything else just tell me...
2007-05-10 11:53:04 · 8 answers · asked by ? 2 in Science & Mathematics ➔ Astronomy & Space
If it has exactly 687 days then no. The reason that the Earth has leap years is because a year is about 365 1/4 days.
2007-05-10 11:57:58 · answer #1 · answered by Barkley Hound 7 · 0⤊ 0⤋
Earth days are not relevant to another planet. The calendar for your planet must be based on the days and years of your planet. A day is one rotation of the planet about its axis. A year is one revolution of the planet about the sun, or whatever star it orbits. If the year is a whole number of days, then no leap year is required. This practically never happens with real planets in real orbits, so your calendar probably will need a leap year.
2007-05-10 20:48:42 · answer #2 · answered by mr.perfesser 5 · 0⤊ 0⤋
Take 687 and divide by 4 to see if you can do 4 even seasons. You'll probably get a fraction. Take the fraction and figure out how many to have to add to get a whole number. The whole number is how many days you have in your leap year and how many fractions you had to add together tells you often you have a leap year.
2007-05-10 19:12:58 · answer #3 · answered by Gene 7 · 0⤊ 0⤋
Take 687 and divide by 4 to see if you can do 4 even seasons. You'll probably get a fraction. Take the fraction and figure out how many to have to add to get a whole number. The whole number is how many days you have in your leap year and how many fractions you had to add together tells you often you have a leap year.
2007-05-10 19:03:19 · answer #4 · answered by Anonymous · 0⤊ 0⤋
From the reads of this you're actually talking about the planet Mars. Have a read of the wikipedia page shown below on the planet and you'll find out what you need. Also you might want to have a look at the NASA and JPL pages. Best wishes.
2007-05-10 19:02:33 · answer #5 · answered by Tiffany M 1 · 0⤊ 0⤋
the earth wouldnt even need a leap year if 2 kings hadnt gotten greedy and wanted a month named after each of them (july and august) it was originally only 10 months with the days in each alternating 30 then 31 and so on
2007-05-10 19:55:20 · answer #6 · answered by nckros191 2 · 0⤊ 0⤋
leap year is about 365 and 1/4 and a year is about 365 days leap year only happens every 4 years
2007-05-10 20:08:56 · answer #7 · answered by jogil k 1 · 0⤊ 0⤋
Same as above
:-)
Can I get the best answer?????
2007-05-10 19:00:31 · answer #8 · answered by martinpaul2001 3 · 0⤊ 1⤋