Biela's Comet

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Biela’s Comet

a comet discovered in 1826 by the Czech amateur astronomer W. Biela. Its identity with the comets of 1772 and 1806–1 was established.

The comet was observed in appearances in 1832,1846, and 1852. In January 1846 its division into two parts was discovered; by 1852 the distance between its parts was 2.8 million km. From their motion, the comet’s mass was estimated to be4 • 10^-7 times that of the earth. Some timeafter 1852 Biela’s comet finally decomposed; however, in 1872 a weak cometlike cloud was observed, probably a cluster of still-unscattered meteoric matter. The approach of decomposition products to the earth in 1741, 1872, and 1885 produced heavy meteor showers, the Andromedides (Bielides).

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