Convert Sidereal Months to Yoctoseconds
Convert Sidereal Months (sid.mo) to Yoctoseconds (ys) instantly and accurately.
Conversion Formula
ys = sid.mo × 2.360591570e+30
About Sidereal Months
The sidereal month = Moon's orbital period relative to the fixed stars = 27.3217 days = 2,360,591.6 s - the shortest lunar month. It is ~2.21 days shorter than the synodic month (29.53 d) because Earth advances ~27° along its orbit in the same period; the Moon must travel further to re-align with the Sun. Used in GPS orbit design, tidal modelling, and lunar laser ranging. 1 sid.mo = 27.3217 d.
About Yoctoseconds
A yoctosecond (ys) = 10⁻²⁴ s - the smallest named SI prefix time unit. Light travels ~0.3 fm in 1 ys, about one-tenth the proton charge radius. Strong-force quark binding operates on ~1 ys timescales; W and Z boson lifetimes are ~260-290 ys. Lead-lead collisions at the LHC produce quark-gluon plasma that thermalises within a few ys. These timescales are inferred from decay widths via ΔE × Δt ≥ ℏ. 1 ys = 10⁻²⁴ s.
Quick Reference Table
| Sidereal Months (sid.mo) | Yoctoseconds (ys) |
|---|---|
| 1 sid.mo | 2.361 × 1030 ys |
| 2 sid.mo | 4.721 × 1030 ys |
| 5 sid.mo | 1.18 × 1031 ys |
| 10 sid.mo | 2.361 × 1031 ys |
| 25 sid.mo | 5.901 × 1031 ys |
| 50 sid.mo | 1.18 × 1032 ys |
| 100 sid.mo | 2.361 × 1032 ys |