Year (mean tropical) is time unit, symbol: [a, y, or yr]. Definition of 1 year (mean tropical) ≈ 365.242190402 d. Tropical year is the length of time it takes for the Sun to return to the same position in the cycle of seasons, approximately 365.24219 days. Compared to second, year (mean tropical) is bigger unit.
• 1 [a, y, or yr] = `31556925.2507328` [s]
• 1 [s] = `1/(31556925.2507328)` [a, y, or yr] = 3.168876536781 × 10-8 [a, y, or yr]
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Multiply convert of year (mean tropical) to common time units:
[a, y, or yr]Time units sort by name in ABC order
From the mean longitude referred to the mean ecliptic and the equinoxof the date given in Simon et al., 1994, Astron. Astrophys., 282, 663. http://hpiers.obspm.fr/eop-pc/...