Astronomy View all facts Glossary Help |
abstraction > mathematical concept > number > quantity > length > semimajor axis |
semimajor axis comparison table |
Subject | is an instance of | has unit | see also | is a kind of | has symbol | has definition | is requir |
---|---|---|---|---|---|---|---|
length | length unit | quantity | |||||
orbital element | osculating element | orbital quantity | One of seven quantities that must be established from observations in order to define the size, shape, and orientation of an orbit in space. | to define the size, shape, and orientation of an orbit in space | |||
semimajor axis | length | length unit | osculating element | a | An orbital element representing half the length of the major axis of an ellipse. | to define the size, shape, and orientation of an orbit in space |
Next length: semiminor axis Up: length, orbital element Previous length: radius