Sentences with phrase «large orbital eccentricities»

Given the large orbital eccentricities of these two objects (which move beyond 500 AUs of the Sun), some astronomers have argued that they were likely to have been strongly perturbed by a massive celestial object (which is unlikely to have been Neptune as they do not come close enough to feel its gravitational influence) such as the passing of a rogue planet (perturbed from its primordial orbit by the gas giants of the inner Solar Sylstem) or one or more passing stars, which could have dragged the two objects farther out after initial orbital perturbation by Neptune or as part of a «first - generation» Oort Cloud.

Referred to as «extreme KBOs» (eKBOs) by the authors, all of these have extremely large orbital eccentricities, in other words, they get very close to the Sun at one point on their orbital journey, only to swing far out into space once they pass the Sun, on long elliptical orbits that take these strange mini worlds hundreds of AUs away from the Sun.

Not exact matches

This large range also arises from the planet's high degree of orbital eccentricity.

Planets with such orbits are also more likely to have greater orbital eccentricity which if not too large can in turn can contribute to non synchronous rotation such as 3:2 or even 2; 1 resonances, as seen in Mercury with an orbital eccentricity of 0.2.