Definition:Tropical Year
Jump to navigation
Jump to search
Definition
The tropical year is the time interval between two consecutive passages, in the same direction, of the Sun through the equatorial plane of Earth.
| \(\ds \) | \(\) | \(\ds 1\) | tropical year | |||||||||||
| \(\ds \) | \(\approx\) | \(\ds 365 \cdotp 24219 \, 878\) | mean solar days | |||||||||||
| \(\ds \) | \(\approx\) | \(\ds 365 \cdotp 24219 \, 878 \times 24 \times 60 \times 60\) | seconds |
That is:
| \(\ds \) | \(\) | \(\ds 1\) | tropical year | |||||||||||
| \(\ds \) | \(\approx\) | \(\ds 365\) | mean solar days, | |||||||||||
| \(\ds \) | \(\) | \(\ds 5\) | hours, | |||||||||||
| \(\ds \) | \(\) | \(\ds 48\) | minutes, and | |||||||||||
| \(\ds \) | \(\) | \(\ds 45 \cdotp 9747\) | seconds |
Also known as
The tropical year is also known as the solar year.
Also see
- Results about the tropical year can be found here.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): year
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): year