Differential rotation is seen if parts of a rotating object move with different angular velocity. (to put it short and non-scientific, parts at different distances from the rotation axis make a different number of rounds at a given time interval). This indicates that the object is not solid. In fluid objects, such as accretion disks this leads to shearing. Usually galaxies and protostars show differential rotation; also the Sun, Jupiter and Saturn show differential rotation.

See also

• Solar nebula
• Sunspot
• Giovanni Cassini

Differentielle Rotation | Rotation différentielle | Diferencijalna rotacija | 較差自轉

Astronomy