입체각
Also known as Ω, solid angular measure
measure of a subtended portion of a sphere, used to describe the apparent size of items in a three-dimensional field of view
Key facts
- Common symbols
- Ω
- Si unit
- steradian
- Other units
- Square degree , spat
- In si base units
- m /m
- Conserved
- No
- Derivations from other quantities
- Ω = A / r 2 {\displaystyle \Omega =A/r^{2}}
- Dimension
- 1 {\displaystyle 1}
via Wikipedia infobox