The Catalog of Components of Double and Multiple Stars, or CCDM, is an astrometric star catalogue of double and multiple stars. It was made by Jean Dommanget and Omer Nys at the Royal Observatory of Belgium in order to provide an input catalogue of stars for the Hipparcos mission. The published first edition of the catalog, released in 1994, has entries for 74,861 components of 34,031 double and multiple stars; the second edition, in 2002, has been expanded to provide entries for 105,838 components of 49,325 double and multiple stars. The catalog lists positions, magnitudes, spectral types, and proper motions for each component.
Famous quotes containing the words components, double, multiple and/or stars:
“Hence, a generative grammar must be a system of rules that can iterate to generate an indefinitely large number of structures. This system of rules can be analyzed into the three major components of a generative grammar: the syntactic, phonological, and semantic components.”
—Noam Chomsky (b. 1928)
“To be a woman and a writer
is double mischief, for
the world will slight her
who slights “the servile house,” and who would rather
make odes than beds.”
—Dilys Laing (1906–1960)
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“Ere he was born, the stars of fate
Plotted to make him rich and great:
When from the womb the babe was loosed,
The gate of gifts behind him closed.”
—Ralph Waldo Emerson (1803–1882)