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day (sidereal)
Symbol:  d (sider.) 
Category:  Time 
SI Equivalent:  8.6164×104 s
Dimension
 
Notes
The sidereal day is the time needed for the earth to complete one revolution relative to the remote stars.
Convert     d (sider.)  
1 d (sider.) =
Permeability coefficient
  Symbol Unit Name
8.6164×104  kg-m/N-s  kilogram meter per newton per second 
5.92918×1016  perm-inch (0 °C)  perm-inch (0°C) 
5.90452×1016  perm-inch (23 °C)  perm-inch (23°C) 
5.92918×1019  perm-mil (0 °C)  perm-mil (0°C) 
5.90452×1019  perm-mil (23 °C)  perm-mil (23°C) 
Time
  Symbol Unit Name
3.56214×1021  a.u.  a.u. of time 
9.97268×104    blink 
0.997269  d  day 
7.12335×10-2    fortnight 
23.9344  h  hour 
9.16677×1027    Jordan's elementary time 
8.6164×1010  ms  microsecond 
8.6164×107  ms  millisecond 
1436.07  min, mn  minute 
3.32423×10-2    month (30 days) 
3.6501×10-2    month (sidereal) 
3.27869×10-2    month (solar mean) 
3.37707×10-2    month (synodic), lunar month 
8.6164×1013  ns  nanosecond 
8.6164×104  s  second 
8.6164×1012    shake 
0.142467  w  week 
2.58492×1014    wink 
2.73035×10-3  aastr.  year (astronomical), Bessel year 
2.73224×10-3  a, y  year (calendar) 
2.73032×10-3    year (sidereal) 
2.73037×10-3  a, y  year (solar mean) 
2.73043×10-3  atrop.  year (tropical) 
Glossary