Tham khảo Hằng_số_thiên_văn

  1. ↑ Resolution No.4 of the XIIth General Assembly of the International Astronomical Union, Hamburg, 1964.
  2. 1 2 Resolution No. 1 on the recommendations of Commission 4 on ephemerides in the XVIth General Assembly of the International Astronomical Union, Grenoble, 1976.
  3. 1 2 Highlights of Astronomy
  4. ↑ Resolution B2 of the XXVIIth General Assembly of the International Astronomical Union, Rio de Janeiro, 2009.
  5. ↑ IAU Division I Working Group on Numerical Standards for Fundamental Astronomy and Astronomical Constants: Current Best Estimates (CBEs) Error in Webarchive template: Empty url.
  6. ↑ Gérard Petit; Brian Luzum biên tập (2010). “Table 1.1: IERS numerical standards” (PDF). IERS technical note no. 36: General definitions and numerical standards. International Earth Rotation and Reference Systems Service. For complete document see Gérard Petit; Brian Luzum biên tập (2010). IERS Conventions (2010): IERS technical note no. 36. International Earth Rotation and Reference Systems Service. ISBN 978-3-89888-989-6.