BS

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BS

Prefix used to designate a star as listed in the Bright Star Catalog, the unofficial name for the Yale Catalog of Bright Stars (YBS). This catalog developed from the Harvard Revised Photometry , first published 1908 in Harvard Annals, Vol. 50, and also known as the HR Catalog. The BS Catalog took over the 9110 objects contained in the HR Catalog, preserving the HR numbering. Early editions of the BS Catalog listed 14 objects that were not stars. The latest (5th) edition (by D. Hoffleit and W.H. Warren Jr), published 1991, thus contains data on 9096 stars to a limiting magnitude of 6.5 for the epoch 2000.0. The BS Catalog is available in computerized form.

BS

1. Abbr. for “British Standard” published by the British Standards Institution; each standard is designated by the letters BS followed by a number.
2. On drawings, abbr. for “both sides.”
3. Abbr. for “beam spacer.”

BS

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bs

(networking)
The country code for the Bahamas.