Alternative definitions (1),
class:
vernacular (0)

Term: | Oort constants |

Definition: |
Two parameters, denoted A and B, that describe the major features of our Galaxy's differential rotation in the Sun's neighbourhood. A is one-half of the shear and equal to +14.4 ± 1.2 km s^-1 kpc^-1, and B, one-half of the vorticity, equal to -12.0 ± 2.8 km s^-1 pc^-1. |

Created 2023.04.16

Last Modified 2023.04.16

Contributed by Ryan
McGranaghan

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