
(26375) 1999 DE9
Encyclopedia
is a trans-Neptunian object
. Light-curve-amplitude analysis shows only small deviations, suggesting is a spheroid with small albedo spots and hence a dwarf planet. It was discovered in 1999 by Chad Trujillo
and Jane X. Luu
.
It is classified as a resonant
as its 417-year orbit is in 2:5 resonance with Neptune's orbit. Spectral analysis has shown traces of ice.
Trans-Neptunian object
A trans-Neptunian object is any minor planet in the Solar System that orbits the Sun at a greater distance on average than Neptune.The first trans-Neptunian object to be discovered was Pluto in 1930...
. Light-curve-amplitude analysis shows only small deviations, suggesting is a spheroid with small albedo spots and hence a dwarf planet. It was discovered in 1999 by Chad Trujillo
Chad Trujillo
Chadwick A. "Chad" Trujillo is an astronomer and the co-discoverer of the dwarf planet Eris.Trujillo works with computer software and has examined the orbits of the numerous trans-Neptunian objects , which is the outer area of the solar system that he specialized in. In late August 2005, it was...
and Jane X. Luu
Jane Luu
-Early life:Luu was born in 1963 in South Vietnam to a father who worked as a translator for the U.S. Army. Her father taught her French as a child, beginning her lifelong love of languages....
.
It is classified as a resonant
Resonant trans-Neptunian object
In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object in mean motion orbital resonance with Neptune. The orbital periods of the resonant objects are in a simple integer relations with the period of Neptune e.g. 1:2, 2:3 etc...
as its 417-year orbit is in 2:5 resonance with Neptune's orbit. Spectral analysis has shown traces of ice.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris