comet group

A group of comets, occurring in the Solar System, which, apart from the time of perihelion passage, have very nearly the same orbital elements. 1668, 1843 I, 1880 I, 1882 II, 1887 I, and 1948 VII is a typical group. These groups have probably been formed by the tidal splitting of a larger comet.

comet group

[′käm·ət ‚grüp] (astronomy) A division of comets on the basis of their period; the short-period group (periods of less than 200 years) contains orbits that show a strong preference for the plan of the solar system; the planes of long-period comets are randomly distributed.

单词	comet group
释义	comet group comet group A group of comets, occurring in the Solar System, which, apart from the time of perihelion passage, have very nearly the same orbital elements. 1668, 1843 I, 1880 I, 1882 II, 1887 I, and 1948 VII is a typical group. These groups have probably been formed by the tidal splitting of a larger comet. comet group [′käm·ət ‚grüp] (astronomy) A division of comets on the basis of their period; the short-period group (periods of less than 200 years) contains orbits that show a strong preference for the plan of the solar system; the planes of long-period comets are randomly distributed.
随便看	defeminises defeminising defeminization defeminize defeminized defeminizes defeminizing defence defence & aerospace publishing services (switzerland) sa defence against terrorism defence attache defence attaché defence board defence catering group defence construction canada defence contract condition defence cooperation initiative defence costs defence electronics research laboratory defence equipment capability defence estates committee defence firm defence fixed telecommunications service defence force defence force recruiting