Ch 02-04 Star Names

• Constellations: In total 88, defined by IAU in 1928; they are simply regions of sky.
• Proper names       (e.g. Vega)
• Bayer Greek letters (17th century; ordered by apparent brightness)       (e.g. α Lyrae)
• Flamsteed numbers (18th century; ordered by position, from west to east)       (e.g. 3 Lyrae)
• Catalogs
      BD +38^◦3238 (1860, Bonner Durchmusterung)
      HR 7001 (1908, Harvard Revised)
      HD 172167 (1918~25 Henry-Draper)
      GC 25466 (1936, General Catalog, Carnegie)
• Other catalogs, other objects (not only stars)
  M42, RR Lyrae, NGC 700, G5.3-1.0, PSR B1951+32, 3C273 ............