Convert Square Arcminute to Hemisphere
Enter the number of square arcminutes that you want to convert to hemispheres.
How to Convert Square Arcminutes to Hemispheres
The square arcminute and hemisphere are both units of solid angle. 1 hemisphere equals 74255374.073 square arcminutes. This means to convert square arcminutes to hemispheres, you divide by 74255374.073.
Formula
Step-by-Step Example
Convert 5 arcmin² to hemispheres:
We need to convert square arcminutes to hemispheres
Since 1 hemisphere = 74255374.073 arcmin², divide by 74255374.073
5 ÷ 74255374.073 = 6.7335193748e-8
5 arcmin² = 6.7335193748e-8 hemisphere
Square Arcminute to Hemisphere Conversion Table
Quick reference table for common square arcminute to hemisphere conversions. Click any value for detailed calculation.
| Square Arcminutes (arcmin²) | Hemispheres (hemisphere) |
|---|---|
| 0.1 arcmin² | 1.346703875e-9 hemisphere |
| 0.5 arcmin² | 6.7335193748e-9 hemisphere |
| 1 arcmin² | 1.346703875e-8 hemisphere |
| 2 arcmin² | 2.6934077499e-8 hemisphere |
| 5 arcmin² | 6.7335193748e-8 hemisphere |
| 10 arcmin² | 1.346703875e-7 hemisphere |
| 25 arcmin² | 3.3667596874e-7 hemisphere |
| 50 arcmin² | 6.7335193748e-7 hemisphere |
| 100 arcmin² | 1.346703875e-6 hemisphere |
About These Units
Square Arcminute (arcmin²)
A square arcminute equals (1/60)² of a square degree or about 8.46×10⁻⁸ steradians. One square degree = 3,600 square arcminutes. Used for small astronomical fields: nebula sizes, galaxy images, and detector pixel scales. Full Moon ≈ 720 arcmin².
Hemisphere (hemisphere)
A hemisphere equals 2π steradians (≈6.283 sr)—half of a complete sphere. Represents the visible sky from any point on Earth, or one side of a surface. Used in lighting calculations: a horizontal surface receives radiation from a hemisphere of solid angle.
Frequently Asked Questions
How do I convert square arcminutes to hemispheres?
To convert square arcminutes to hemispheres, divide the value by 74255374.073. For example, 10 arcmin² = 1.346703875e-7 hemisphere.
How many hemispheres are in 1 square arcminute?
1 square arcminute equals 1.346703875e-8 hemispheres.
What is the formula for square arcminutes to hemispheres?
The formula is: hemisphere = arcmin² ÷ 74255374.073.