Convert Julian Years to Picoseconds
Convert Julian Years (a_J) to Picoseconds (ps) instantly and accurately.
Conversion Formula
ps = a_J × 3.155760000e+19
About Julian Years
The Julian year (a_J) = exactly 365.25 days = 31,557,600 s - the IAU standard year for astronomical distances. The light-year is formally 1 ly = c × 1 a_J = 9.461 × 10¹⁵ m (IAU 2012 B2). Julian years differ from Gregorian years by only 648 s (~10.8 min/year); important for high-precision astrometry or calculations spanning centuries. 1 a_J = 365.25 d = 31,557,600 s.
About Picoseconds
A picosecond (ps) = 10⁻¹² s; light travels 0.3 mm. Water molecules reorient via H-bond dynamics in ~1-3 ps, explaining microwave absorption. THz spectroscopy probes ps-scale dynamics in molecular systems. Sub-5 nm CMOS gate delays are a few ps; GaAs HEMTs reach ~0.1 ps. Muon mean lifetime = 2,197 ps. OTDR uses ps pulses for millimetre-resolution fibre-fault location. 1 ps = 10⁻¹² s.
Quick Reference Table
| Julian Years (a_J) | Picoseconds (ps) |
|---|---|
| 1 a_J | 3.156 × 1019 ps |
| 2 a_J | 6.312 × 1019 ps |
| 5 a_J | 1.578 × 1020 ps |
| 10 a_J | 3.156 × 1020 ps |
| 25 a_J | 7.889 × 1020 ps |
| 50 a_J | 1.578 × 1021 ps |
| 100 a_J | 3.156 × 1021 ps |