Microsteradian (μsr)

A microsteradian (μsr) equals 10⁻⁶ steradians or about 11.8 square arcminutes. Used in astronomy for field of view specifications, laser beam divergence measurements, and telescope aperture calculations. A typical star appears as ~1 μsr from Earth.

Convert From Microsteradians

Microsteradian to Steradian Microsteradian to Millisteradian Microsteradian to Nanosteradian Microsteradian to Square Degree Microsteradian to Square Arcminute Microsteradian to Square Arcsecond Microsteradian to Spat Microsteradian to Hemisphere Microsteradian to Octant Microsteradian to Spherical Quadrant Microsteradian to Percent of Sphere

Convert To Microsteradians

Steradian to Microsteradian Millisteradian to Microsteradian Nanosteradian to Microsteradian Square Degree to Microsteradian Square Arcminute to Microsteradian Square Arcsecond to Microsteradian Spat to Microsteradian Hemisphere to Microsteradian Octant to Microsteradian Spherical Quadrant to Microsteradian Percent of Sphere to Microsteradian

Conversion Factors

1 μsr 1e-6 sr

1 μsr 0.001 msr

1 μsr 1000 nsr

1 μsr 0.0032828066 deg²

1 μsr 11.818109835 arcmin²

1 μsr 42545.225575 arcsec²

1 μsr 7.9577471548e-8 sp

1 μsr 1.591549431e-7 hemisphere

1 μsr 6.3661977237e-7 octant

1 μsr 3.1830988614e-7 quadrant

1 μsr 7.9577475436e-6 %sphere

Related Units

Steradian (sr) Millisteradian (msr) Nanosteradian (nsr) Square Degree (deg²) Square Arcminute (arcmin²) Square Arcsecond (arcsec²) Spat (sp) Hemisphere (hemisphere) Octant (octant) Spherical Quadrant (quadrant) Percent of Sphere (%sphere)