Abstract

This review is about the current state of the Pluto-class atmosphere. In the past decades, a lot of studies have been done on Pluto including its atmosphere. The pluto-class dwarf planets and large Trans-Neptunian-Objects have also been observed. Missions New Horizons and Voyagers provided some in-situ observations of Pluto-class atmospheric detection. Four pluto-class objects Pluto, Triton, Era and Makemake will be included and focus will be given to Pluto and Triton's atmospheres. Surface components, temperature profile, haze and atmospheric escape are reviewed in detail for Pluto, while Triton's atmospheric components are shortly given.