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year (sidereal) 
Symbol:   
Category:  Time 
SI Equivalent:  3.15581×107 s
Dimension:  T 
Notes
Sidereal time is the time measured by the apparent motion about the earth of distant (therefore considered fixed) stars, as opposed to the solar time which corresponds to the apparent motion about the earth of the sun. The sidereal year is the time interval between two conjunctions of the sun with the same remote star.
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Convert     year (sidereal)  
1 year (sidereal) = 
Permeability coefficient
  Symbol Unit Name
3.15581×107  kg-m/N-s  kilogram meter per newton per second 
2.1716×1019  perm-inch (0 °C)  perm-inch (0°C) 
2.16257×1019  perm-inch (23 °C)  perm-inch (23°C) 
2.1716×1022  perm-mil (0 °C)  perm-mil (0°C) 
2.16257×1022  perm-mil (23 °C)  perm-mil (23°C) 
Time
  Symbol Unit Name
1.30466×1024  a.u.  a.u. of time 
3.65256×107    blink 
365.256  d  day 
366.257  d (sider.)  day (sidereal) 
26.0897    fortnight 
8766.15  h  hour 
3.35739×1030    Jordan's elementary time 
3.15581×1013  ms  microsecond 
3.15581×1010  ms  millisecond 
5.25969×105  min, mn  minute 
12.1752    month (30 days) 
13.3687    month (sidereal) 
12.0084    month (solar mean) 
12.3687    month (synodic), lunar month 
3.15581×1016  ns  nanosecond 
3.15581×107  s  second 
3.15581×1015    shake 
52.1795  w  week 
9.46744×1016    wink 
1.00001  aastr.  year (astronomical), Bessel year 
1.0007  a, y  year (calendar) 
1.00002  a, y  year (solar mean) 
1.00004  atrop.  year (tropical) 
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