Dictionary of Nomenclature of Celestial Objects
(Last update: 22-May-2018)

Result of query: info cati GSC2.3$

Details on Acronym:   GSC2.3
   GSC2.3 (Guide Star Catalog, version 2.3) Write:<<GSC2.3 {N|S}{A..Z|0..9}{A..Z|0..9}{A..Z|0..9}{A..Z|0..9}NNNNNN>> Object:*  (SIMBAD class: Star) Note:GSC II all-sky catalog. The GSC2.3 identification differs from GSC2.2 preliminary version: 10 characters, the first four representing the level-6 HTM (Hierarchical Triangular Mesh) coded in base 36 (0..9 and A..Z), and the last 6 represent a zero-filled sequence number assigned to each source upon initial detection. Auth.:Space Telescope Science Institute+ =E=Catalogue in electronic form as I/305 Originof the Acronym: A = Assigned by the author(s)

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