dust tail


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dust tail

See comet tails.

dust tail

[′dəst ‚tāl]
(astronomy)
A comet tail that consists of particles, typically 1 micrometer in diameter and primarily silicate in composition, and is usually curved with a length in the range from 106 to 107 kilometers.
References in periodicals archive ?
These trails--a phenomenon related to, but separate from, the dust tails comets flaunt in visible light as they move near the sun--consist of larger, pebble-size debris that scatter sunlight poorly.
Each of the 10 parts have comet-like dust tails, and the biggest four chunks are each double the size of a football field.
With its superior resolution, space telescope observations soon showed there were really 10 embedded objects, each with comet-like dust tails.
Most meteor showers originate from comets composed of ice emitting millions of kilometres of dust tails.
He covers dynamics, physical aspects, spectra, spectra of coma, gas production rates in coma, dust tails, light scattering theory, the nature of dust particles, ion tails, nucleus, origin, and relations to other solar system studies.