The eccentricity of an orbit is not measured in days. The excentricity is a numeric value between 0 (for a perfect circle) to 1 (for an extremely prolonged elipse).
24 hours makes one day.seven days makes one week.four weeks makes one month.six months makes one half year.one year is 12 months.and that totals 365(366 for leap year)
The Earth's axis completes one full cycle of precession approximately every 26,000 years. At the same time, the elliptical orbit rotates, more slowly, leading to a 21,000-year cycle between the...