参考文献 (2)
- The precession rate behind the tropical/sidereal drift: N. Capitaine, P. T. Wallace and J. Chapront, "Expressions for IAU 2000 precession quantities." Astronomy & Astrophysics 412, 567–586, 2003.
- The 1930 constellation boundaries that give the Sun 13 constellations, not 12: E. Delporte, Délimitation scientifique des constellations. Cambridge University Press for the IAU, 1930.