Eeloo, the poster-child for ice worlds, is remarkably white and very difficult to look away from once clearly observed. It hosts a significant gravity well and encourages kerbal scientists to believe that a significant portion of the cosmos may consist of ice cream scoops.

Eeloo stands among the celestials with the most interesting topology around, with combinations of fissures and stepped or recursive craters. Its atmosphere is thinner than Duna, but its lower temperature and lower gravity may effectively balance out and keep the atmosphere experience the same. It currently does not have an interesting biome map, but it does have custom ground scatters.

Eeloo's highly eccentric orbit takes it both inside the orbit of Lindor and outside the orbit of Hamek. So depending on where it is at the time, Eeloo can be either the 8th, 9th or 10th celestial body in order of distance from the Sun.

Rational Resources Classification:

Ocean	Surface	Atmosphere	Exosphere
None	Ice-Methane	Ice-Methane	None

From the PDF included in the download:

Bulk Params		Orbital and Rotational Params
Classification	Dwarf planet	Semi-major Axis	471,171,300 km
Radius	600 km sea level, 602.6 km mean	Periapsis	348,666,762 km
Mass	7.93456×1021 kg	Apoapsis	593,675,838 km
Gravitational Parameter	5.29559×1011 m3/s2	Orbit eccentricity	0.26
Mean density	8,660 kg/m3	Orbit inclination	6.15°
Surface gravity	0.15 g ASL	Longitude of ascending node	50°
Escape velocity	1,329 m/s	Argument of periapsis	260°
Bond Albedo	0.6	Sidereal orbit period	44.491 years
Solar irradiance	8.6 W/m2	Synodic period	373.39 days
Black-body temperature	62 K	Mean orbital velocity	4,220 m/s
Natural satellites	Celes	Sidereal rotation period	8 hours
	Tam	Solar day	8.0003 hours
		Synchronous orbit altitude	1,632 km
		Sphere of influence	621,195 km

Atmosphere
Overall height	80 km
Pressure	0.02 atm sea level
Mean temperature	65 K sea level
Mean molecular weight	28 g/mol
Composition	100% N2