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Convert scientific year to sidereal year

Here you can quickly calculate how many sidereal year fit in one scientific year.

- scroll: formula · table · questions -

  • 1 = 0.999983
  • 1 = 1.000017

Scientific year to sidereal year conversion table

scientific year sidereal year
1 0.999983
2 1.999965
5 4.999913
10 9.999826
20 19.999651
50 49.999129
100 99.998257

Scientific year to sidereal year formula

To convert scientific year to sidereal year, multiply by 0.999983.

1 = 0.999983
Example: 1 scientific year = 0.999983 sidereal year

Common time conversion mistakes

  • There are several year definitions: the Julian year is exactly 365.25 days, the Gregorian calendar year 365.2425, and the tropical year about 365.2422 days. For everyday use the differences are negligible, but they matter in astronomy, the light-year, for instance, is defined using the Julian year.

Quick scientific year and sidereal year conversion quiz

Score: 0

19.1 sidereal year equals 16.2 scientific year.

Correct answer: 19.1 sidereal year = 19.1 scientific year.

14.4 sidereal year equals 14.4 scientific year.

Correct answer: 14.4 sidereal year = 14.4 scientific year.

134 sidereal year equals 134 scientific year.

Correct answer: 134 sidereal year = 134 scientific year.

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