Laboratory. [10 February 2021]. (原始内容存档于10 February 2021). ProjectPluto 1951 Ephemeris. ProjectPluto. [15 February 2021]. (原始内容存档于15 February 2021). Voosen
Computed from period, using the IAU-MPC NSES (页面存档备份,存于互联网档案馆) µ value PlutoProject pseudo-MPEC for Saturn VII. [2007-09-28]. (原始内容存档于2006-05-29). NASA's