Sedna (dwarf planet)farthest point from the Sun in its elliptical orbit, is located 937 astronomical units (AU) away. This is some 31 times the distance of Neptune's aphelion
Hubble's lawAstronomy and Astrophysics. 641 A6. arXiv:1807.06209. Bibcode:2020A&A...641A...6P . doi:10.1051/0004-6361/201833910. Riess, Adam G.; Casertano, Stefano; Yuan
Dark matterAstronomy & Astrophysics. 641: A6. arXiv:1807.06209. Bibcode:2020A&A...641A...6P . doi:10.1051/0004-6361/201833910. S2CID 119335614. Kowalski, M.; et al. (2008)
Periodic table(55 electrons): Cs0: 6s < 6p < 5d < 7s < 4f Ba+: 6s < 5d < 6p < 7s < 4f La2+: 5d < 4f < 6s < 6p < 7s Ce3+: 4f < 5d < 6s < 6p < 7s and in the isoelectronic
UniverseAstronomy & Astrophysics. 641: A6. arXiv:1807.06209. Bibcode:2020A&A...641A...6P . doi:10.1051/0004-6361/201833910. ISSN 0004-6361. S2CID 119335614. Dold-Samplonius