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  2. Julian year (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Julian_year_(astronomy)

    In contrast, the Julian year is defined in terms of the SI unit one second, so is as accurate as that unit and is constant. It approximates both the sidereal year and the tropical year to about ±0.008 days. The Julian year is the basis of the definition of the light-year as a unit of measurement of distance. [2]

  3. Julian day - Wikipedia

    en.wikipedia.org/wiki/Julian_day

    A table with 197 Julian days ("Date in Mean Solar Days", one per century mostly) was included for the years –4713 to 2000 with no year 0, thus "–" means BC, including decimal fractions for hours, minutes, and seconds. [53]

  4. Year - Wikipedia

    en.wikipedia.org/wiki/Year

    In astronomy, the Julian year is a unit of time defined as 365.25 days, each of exactly 86 400 seconds (SI base unit), totaling exactly 31,557,600 seconds in the Julian astronomical year. [ 4 ] [ 5 ] Revised Julian calendar

  5. Kali ahargana - Wikipedia

    en.wikipedia.org/wiki/Kali_ahargana

    According to Āryabhaṭa, the duration of a year is 365 days 6 hours 12 minutes 30 seconds, that is, 365.25 days. Hence, as per Āryabhaṭa, the number days in a period of 3600 years is 1,314,931.25 days. Since a Julian year is 365.25, the number of Julian years in a period of 1,314,931.25 days is 3600 years 31.25 days.

  6. Portal:Years/Intro - Wikipedia

    en.wikipedia.org/wiki/Portal:Years/Intro

    In astronomy, the Julian year is a unit of time, defined as 365.25 days of 86 400 SI seconds each (no leap seconds). There is no universally accepted symbol for the year as a unit of time. The International System of Units does not propose one. A common abbreviation in international use is a (for Latin annus), in English also y or yr.

  7. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    Because of this, the table below does not include weeks, months, and years. Instead, the table uses the annum or astronomical Julian year (365.25 days of 86,400 seconds), denoted with the symbol a. Its definition is based on the average length of a year according to the Julian calendar, which has one leap year every four years.

  8. WR Julian Edelman made a miraculous catch – one that benefited New England for a change in the Super Bowl. ... The AFC also ended a 14-year losing streak to the NFC. 15. LVI (56, 2021) Los ...

  9. Gregorian calendar - Wikipedia

    en.wikipedia.org/wiki/Gregorian_calendar

    As the average length of a Julian year is 365.25 days, the Julian year is almost 11 minutes longer than the mean tropical year. The discrepancy results in a drift of about three days every 400 years. Lilius's proposal resulted in an average year of 365.2425 days (see Accuracy). At the time of Gregory's reform there had already been a drift of ...