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square arcsec
Symbol:  sq " 
Category:  Solid angle 
SI Equivalent:  2.35044×10-11 sr
Dimension W 
 
Notes
1 square arcsecond = (p/324000)*sin(p/1.296e6) steradians ~ 1/3600 square arcmins
Convert     sq "  
1 sq " =
Solid angle
  Symbol Unit Name
1.87042×10-12  sp  spat 
2.77778×10-4  sq '  square arcminute 
7.71615×10-8  sq °  square degree 
2.35044×10-11  sr  steradian 
Glossary