Catalog de componente ale stelelor duble și multiple

Catalogul de componente ale stelelor duble și multiple (în franceză: Catalogue de composantes d'étoiles doubles et multiples, iar în engleză: Catalog of Components of Double and Multiple Stars, sigla fiind CCDM) este un catalog stelar publicat pentru prima oară în 1994, apoi reeditat în 2002, dedicat informațiilor relative la stelele duble și multiple.

Catalogul a fost creat de astronomii Jean Dommanget și Omer Nys de la Observatorul Regal al Belgiei, în scopul de a oferi un catalog de plecare pentru misiunea Hipparcos.

În prima sa ediție catalogul recenza 34.031 de sisteme multiple, număr crescut la 49.325 de sisteme în a doua ediție. Pentru fiecare ediție, catalogul listează poziția, magnitudinea aparentă, clasa spectrală și mișcarea proprie ale fiecărei componente.

Nomenclatură

Sistemele repertoriate sunt numite după schema CCDM HHMMm±DDMM, partea HHDDm corespunzând ascensiei drepte a sistemului exprimat în ore, minute și zecimi de minut de ascensie dreaptă, iar partea ±DDMM corespunzând declinației exprimată în grade, precedată de semnul + sau -, și minute de unghi. Aceste coordonate sunt date în epoca J2000.0.

Bibliografie suplimentară

  • Dommanget, J.; Nys, O. (). „Histoire d'un catalogue: Le CCDM”. Observations et Travaux. 52: 26. Bibcode:2000O&T....52...26D. 
  • Dommanget, J.; Nys, O. (). „Catalogue of the components of double and multiple stars (CCDM)- First edition, June 1994”. Bulletin d'Information du Centre de Données Stellaires. 46: 3. Bibcode:1995BICDS..46....3D. 
  • Dommanget, J. (). „The CCDM astrometric catalog for double and multiple stars”. În Philip, A. G. D.; Upgren, A. R. Star Catalogues: A Centennial Tribute to A. N. Vyssotsky. L. Davis Press. p. 77. Bibcode:1989stct.conf...77D. 
  • Dommanget, J. (). „The contribution of the HIPPARCOS mission and of the CCDM catalogue to the study of wide systems”. Astrophysics and Space Science. 142: 23. Bibcode:1988Ap&SS.142...23D. doi:10.1007/BF00656178. 

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