Astronomy:Bright Star Catalogue

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Short description: Yale Catalogue of Bright Stars

The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars, Yale Bright Star Catalogue, or just YBS, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth. The catalog lists 9,110 objects, of which 9,095 are stars, 11 are novae or supernovae,[1] and four are non-stellar objects which are the globular clusters 47 Tucanae (designated HR 95) and NGC 2808 (HR 3671), and the open clusters NGC 2281 (HR 2496) and Messier 67 (HR 3515).[2]

The catalogue is fixed in number of entries, but its data is maintained, and it is appended with a comments section about the objects that has been steadily enhanced. The abbreviation for the catalog as a whole is BS or YBS but all citations of stars it indexes use HR before the catalog number, a homage to the catalog's direct predecessor, published in 1908, named the Harvard Revised Photometry Catalogue.


The earliest predecessor of the YBS, titled Harvard Photometry, was published in 1884 by the Harvard College Observatory under the supervision of Edward Charles Pickering, and contained about 4,000 stars.[3] Following its release, Pickering promoted a broader stellar survey for the southern celestial hemisphere, equally as thorough as the Harvard Photometry of 1884. This photometry work was carried out by Solon I. Bailey between 1889 and 1891, leading to the publication of the Revised Harvard Photometry in 1908. The new catalogue contained stars down to magnitude 6.5 in both hemispheres, for which John A. Parkhurst continued work through the 1920s.[4]

The Yale Bright Star Catalogue has been steadily enhanced since the Yale astronomer Frank Schlesinger published the first version in 1930; even though the YBS is limited to the objects already in the catalog, the data for the objects already listed is corrected and extended, and it is appended with a comments section about the objects. The edition of 1991 was the fifth in order, a version that introduced a considerable enhancement of the comments section, to a little more than the size of the catalogue itself. This most recent edition, in addition to several previous editions, was compiled and edited by Ellen Dorrit Hoffleit of Yale University.[5][6]


To date, there have been one predecessor, and five editions of the YBS Catalog:

  • predecessor – Revised Harvard Photometry (1908)[7]
  • 1st edition – Catalogue of Bright Stars (1930)[8]
  • 2nd edition – Catalogue of Bright Stars (1940)[9]
  • 3rd edition – Catalogue of Bright Stars (1964)[10]
  • 4th edition – The Bright Star Catalogue (1982)[11]
    • Supplement – A Supplement to the Bright Star Catalogue (1983)[12]
  • 5th edition – The Bright Star Catalogue (1991)[13]

See also

Astronomical topics


  • Solon I. Bailey
  • Ida Barney
  • Ellen Dorrit Hoffleit
  • Carlos Jaschek
  • Louise Freeland Jenkins
  • Edward Charles Pickering
  • Frank Schlesinger


  1. These are HR 92, 182, 1057, 1841, 2472, 5958, 6309, 6515, 7189, 7539 and 8296.
  2. Yale Bright Star Catalog. Yale University. 
  3. Johnston, Sean (2001). A history of light and colour measurement: science in the shadows. CRC Press. p. 39. ISBN 0-7503-0754-4. 
  4. Lankford, John (1997). History of Astronomy: an encyclopedia. Garland reference library of social science. 771. Taylor & Francis. p. 397. ISBN 0-8153-0322-X. 
  5. "Dorrit Hoffleit, 1907–2007". Sky & Telescope. 2007. Retrieved 2012-07-21. 
  6. Pearce, Jeremy (2007). "E. Dorrit Hoffleit, Scientist, Dies at 100". The New York Times. 
  7. Pickering, E.C., ed (1908). "Revised Harvard Photometry". Annals of the Astronomical Observatory of Harvard College 50: 1. Bibcode1908AnHar..50....1P. 
  8. Schlesinger, F., ed (1930). Catalogue of Bright Stars. New Haven: The Tuttle, Morehouse & Taylor Company. 
  9. Catalogue of Bright Stars. New Haven: The New Haven Printing Company. 1940. 
  10. Hoffleit, D., ed (1964). Catalogue of Bright Stars. New Haven: Yale University Observatory. 
  11. The Bright Star Catalogue. New Haven: Yale University Observatory. 1982. 
  12. A Supplement to the Bright Star Catalogue. New Haven: Yale University Observatory. 1983. ISBN 0-914753-01-0. 
  13. The Bright Star Catalogue. New Haven: Yale University Observatory. 1991. 

External links