Convert Square Arcsecond to Octant
Input the number of square arcseconds you want to convert to octants.
How to Convert Square Arcseconds to Octants
The square arcsecond and octant are both units of solid angle. 1 octant equals 66829884056 square arcseconds. This means to convert square arcseconds to octants, you divide by 66829884056.
Formula
Step-by-Step Example
Convert 5 arcsec² to octants:
We need to convert square arcseconds to octants
Since 1 octant = 66829884056 arcsec², divide by 66829884056
5 ÷ 66829884056 = 7.4816828888e-11
5 arcsec² = 7.4816828888e-11 octant
Square Arcsecond to Octant Conversion Table
Quick reference table for common square arcsecond to octant conversions. Click any value for detailed calculation.
| Square Arcseconds (arcsec²) | Octants (octant) |
|---|---|
| 0.1 arcsec² | 1.4963365778e-12 octant |
| 0.5 arcsec² | 7.4816828888e-12 octant |
| 1 arcsec² | 1.4963365778e-11 octant |
| 2 arcsec² | 2.9926731555e-11 octant |
| 5 arcsec² | 7.4816828888e-11 octant |
| 10 arcsec² | 1.4963365778e-10 octant |
| 25 arcsec² | 3.7408414444e-10 octant |
| 50 arcsec² | 7.4816828888e-10 octant |
| 100 arcsec² | 1.4963365778e-9 octant |
About These Units
Square Arcsecond (arcsec²)
A square arcsecond equals (1/3600)² of a square degree or about 2.35×10⁻¹¹ steradians. One square arcminute = 3,600 square arcseconds. Measures individual star disks, exoplanet host star separation, and high-resolution imaging pixels.
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 square arcseconds to octants?
To convert square arcseconds to octants, divide the value by 66829884056. For example, 10 arcsec² = 1.4963365778e-10 octant.
How many octants are in 1 square arcsecond?
1 square arcsecond equals 1.4963365778e-11 octants.
What is the formula for square arcseconds to octants?
The formula is: octant = arcsec² ÷ 66829884056.