Outline of the Solar System

Sparse text. Umbriel moon of Uranus. The column on the right includes some notable planets, dwarf planets, asteroids, and trans-Neptunian objects for comparison. Marchis, et al. Most bodies formed within the radius of this gap were swept up by Mars which has an aphelion at 1.

Asteroid family. Asteroid Discovery from to Hidden categories: Of the objects that orbit the Sun indirectly, the moons, two are larger than the smallest planet, Mercury.

List of Solar System objects - Wikipedia

The upper limit is also vague. This box: However, calculations performed after the recent detection [23] of a possible ring system around Saturn's moon Rhea indicate that satellites orbiting Rhea could have stable orbits. Asteroids such as 90 Antiope are considered double asteroids, but they have not forced a clear definition of what constitutes a moon.

Phobos Deimos. Titan and Triton have significant atmospheres; Titan also has hydrocarbon lakes. The semi-major axis of an asteroid is used to describe the dimensions of its orbit around the Sun, and its value determines the minor planet's orbital period.

Portal:Solar System - Wikipedia

Some are believed to have formed from the metallic cores of differentiated progenitor bodies that were disrupted through collision. Miranda moon of Uranus.

Contrary to popular imagery, the asteroid belt is mostly empty. Formation and evolution of the Solar System —. The Astronomical Journal.

Astronomy college course/Solar system (wikipedia)/questions

Solar System articles needing infoboxes Maintain: Namespaces Article Talk. For example, Jupiter's Himalia , Saturn's Phoebe , and Neptune's Nereid have rotation periods in the range of ten hours, whereas their orbital periods are hundreds of days. That length of time between observational periods would explain why a human has never proven its existence. Moons of Saturn. The discovery of Neptune in led to the discrediting of the Titius—Bode law in the eyes of scientists because its orbit was nowhere near the predicted position.

Lunar and Planetary Science. It has also been proposed that Saturn's moon Iapetus had a satellite in the past; this is one of several hypotheses that have been put forward to account for its equatorial ridge. Additional groupings have been found that are less certain. Titania Oberon Umbriel Ariel.

Our Solar System

This page was last edited on 21 February , at The following is a list of Solar System objects by orbit , ordered by increasing distance from the Sun. Orbital Group Family list. They were located in positions where their period of revolution about the Sun was an integer fraction of Jupiter's orbital period. Tokar, J.