Neptunian

Some articles on neptunian:

Alfred Witte - Trans-Neptunian Hypothesis
... In Wiite's times, many Astronomers proposed hypothetical Trans-Neptunian objects ... the existence of several hypothetical Trans-Neptunian objects, too ... has verified the existence of thousands of Trans-Neptunian objects, the specific Trans-Neptunian objects that are used by the Hamburg School and Uranian astrology have not yet been validated ...
Haumea Family
... The Haumea or Haumean family is the only identified trans-Neptunian collisional family that is, the only group of trans-Neptunian objects (TNOs) with similar orbital ... indicate that it is probably the only trans-Neptunian collisional family ...
Planet X
... of Uranus's orbit, he began an extensive project to search for a trans-Neptunian planet, which he named Planet X ... In 1915, he published his Memoir of a Trans-Neptunian Planet, in which he concluded that Planet X had a mass roughly seven times that of the Earth—about half ... Pickering went on to suggest many other possible trans-Neptunian planets up to the year 1932, which he named P, Q, R, S, T and U none were ever detected ...
Scattered Disc - Subdivisions of Trans-Neptunian Space
... Known trans-Neptunian objects are often divided into two subpopulations the Kuiper belt and the scattered disc ... A third reservoir of trans-Neptunian objects, the Oort cloud, is believed to exist, although no confirmed direct observations of the Oort cloud have been made ...
Cis-Neptunian Object
... A cis-Neptunian object is, literally, any astronomical body found within the orbit of Neptune ... those distant minor planets other than trans-Neptunian objects that is, all sub-planetary bodies orbiting the Sun at or within the distance of Neptune, but outside the orbit of Jupiter ... inwards from the Kuiper belt rather than outwards, making them cis-Neptunian rather than trans-Neptunian scattered-disc objects ...