Converting from Sidereal Year (SY) to Decade (Dec) in Time

What is Sidereal Year (SY)

A Sidereal Year (SY) is the time taken for the Earth to orbit the sun once, measured with respect to the fixed stars. It is approximately 365.25636 days.

What is Decade (Dec)

A Decade (Dec) is a period of ten years. It is commonly used for measuring longer terms of time or historical periods.

Conversion Formulas

To convert from Sidereal Year (SY) to Decade (Dec), you can use the formula:

Dec=0.1000038×SY

And to convert from Decade (Dec) to Sidereal Year (SY), you can use the formula:

SY=9.99962×Dec

Examples

• 10 Sidereal Years = 1 Decade
• 17 Sidereal Years = 1.700065 Decades
• 7 Decades = 69.99734 Sidereal Years

Use these formulas to perform conversions from Sidereal Year (SY) to Decade (Dec) or vice versa.