0000000000311491
AUTHOR
P. Santos-sanz
A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation
The dwarf planet Eris is a trans-Neptunian object with an orbital eccentricity of 0.44, an inclination of 44 degrees and a surface composition very similar to that of Pluto. It resides at present at 95.7 astronomical units (1ĝ€‰au is the Earth-Sun distance) from Earth, near its aphelion and more than three times farther than Pluto. Owing to this great distance, measuring its size or detecting a putative atmosphere is difficult. Here we report the observation of a multi-chord stellar occultation by Eris on 6 November 2010 ut. The event is consistent with a spherical shape for Eris, with radius 1,163±6 kilometres, density 2.52±0.05 grams per cm 3 and a high visible geometric albedo,. No nitro…
The large TNO 2002 TC302
VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'The large Trans-Neptunian object 2002 TC302 from combined stellar occultation photometry and astrometry data.' (bibcode: 2020A&A...639A.134O)