Convert Square Degree to Hemisphere
Type the number of square degrees that you wish to convert to hemispheres.
How to Convert Square Degrees to Hemispheres
The square degree and hemisphere are both units of solid angle. 1 hemisphere equals 20626.481964 square degrees. This means to convert square degrees to hemispheres, you divide by 20626.481964.
Formula
Step-by-Step Example
Convert 5 deg² to hemispheres:
We need to convert square degrees to hemispheres
Since 1 hemisphere = 20626.481964 deg², divide by 20626.481964
5 ÷ 20626.481964 = 0.0002424068
5 deg² = 0.0002424068 hemisphere
Square Degree to Hemisphere Conversion Table
Quick reference table for common square degree to hemisphere conversions. Click any value for detailed calculation.
| Square Degrees (deg²) | Hemispheres (hemisphere) |
|---|---|
| 0.1 deg² | 4.8481364963e-6 hemisphere |
| 0.5 deg² | 2.4240682482e-5 hemisphere |
| 1 deg² | 4.8481364963e-5 hemisphere |
| 2 deg² | 9.6962729926e-5 hemisphere |
| 5 deg² | 0.0002424068 hemisphere |
| 10 deg² | 0.0004848136 hemisphere |
| 25 deg² | 0.0012120341 hemisphere |
| 50 deg² | 0.0024240682 hemisphere |
| 100 deg² | 0.0048481365 hemisphere |
About These Units
Square Degree (deg²)
A square degree (deg² or sq.deg.) equals (π/180)² ≈ 0.000305 steradians. A complete sphere covers 41,253 square degrees. The full Moon is about 0.2 deg². Common in astronomy: survey areas, galaxy cluster sizes, and cosmic microwave background maps.
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 degrees to hemispheres?
To convert square degrees to hemispheres, divide the value by 20626.481964. For example, 10 deg² = 0.0004848136 hemisphere.
How many hemispheres are in 1 square degree?
1 square degree equals 4.8481364963e-5 hemispheres.
What is the formula for square degrees to hemispheres?
The formula is: hemisphere = deg² ÷ 20626.481964.