Convert Microsteradian to Octant
Convert microsteradians to octants by entering a value below.
How to Convert Microsteradians to Octants
The microsteradian and octant are both units of solid angle. 1 octant equals 1570796.3268 microsteradians. This means to convert microsteradians to octants, you divide by 1570796.3268.
Formula
Step-by-Step Example
Convert 5 μsr to octants:
We need to convert microsteradians to octants
Since 1 octant = 1570796.3268 μsr, divide by 1570796.3268
5 ÷ 1570796.3268 = 3.1830988618e-6
5 μsr = 3.1830988618e-6 octant
Microsteradian to Octant Conversion Table
Quick reference table for common microsteradian to octant conversions. Click any value for detailed calculation.
| Microsteradians (μsr) | Octants (octant) |
|---|---|
| 0.1 μsr | 6.3661977237e-8 octant |
| 0.5 μsr | 3.1830988618e-7 octant |
| 1 μsr | 6.3661977237e-7 octant |
| 2 μsr | 1.2732395447e-6 octant |
| 5 μsr | 3.1830988618e-6 octant |
| 10 μsr | 6.3661977237e-6 octant |
| 25 μsr | 1.5915494309e-5 octant |
| 50 μsr | 3.1830988618e-5 octant |
| 100 μsr | 6.3661977237e-5 octant |
About These Units
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.
Octant (octant)
An octant equals π/2 steradians (≈1.571 sr)—one-eighth of a complete sphere. Represents one corner of a cube viewed from the center. Each octant is bounded by three mutually perpendicular great circles. Used in 3D spatial partitioning.
Frequently Asked Questions
How do I convert microsteradians to octants?
To convert microsteradians to octants, divide the value by 1570796.3268. For example, 10 μsr = 6.3661977237e-6 octant.
How many octants are in 1 microsteradian?
1 microsteradian equals 6.3661977237e-7 octants.
What is the formula for microsteradians to octants?
The formula is: octant = μsr ÷ 1570796.3268.