Oort clood
The Oort clood /ˈɔːrt/[1] (named efter the Dutch astronomer Jan Oort), or Öpik–Oort clood,[2] is a hypothesized spherical clood o predominantly icy planetesimals that mey lie roughly 50,000 AU, or nearly a licht-year, frae the Sun.[3] This places the clood at nearly a quarter o the distance tae Proxima Centauri, the nearest starn tae the Sun.
References
eedit- ↑ "Oort". Oxford English Dictionary (3rd ed.). Oxford University Press. September 2005. (Subscription or UK public leebrar membership required.)
- ↑ Whipple, F. L. (30 September 1987). "A Review of Cometary Sciences". Philosophical Transactions of the Royal Society A. Royal Society Publishing. 323 (1572): 339–347 [341]. Bibcode:1987RSPTA.323..339W. doi:10.1098/rsta.1987.0090. Unknown parameter
|coauthors=ignored (|author=suggested) (help) - ↑ Alessandro Morbidelli (2006). "Origin and dynamical evolution of comets and their reservoirs of water ammonia and methane.". arXiv:astro-ph/0512256 [astro-ph].