Dictionary of Nomenclature of Celestial Objects (Last update: 02-Jan-2019)
Result of query: info cati GSC2.3$
Details on Acronym: GSC2.3 GSC2.3 (Guide Star Catalog, version 2.3)
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/305Originof the Acronym: A = Assigned by the author(s)