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This article includes a list of the most massive known objects of the Solar System and partial lists of smaller objects by observed mean radius. These lists can be sorted according to an object's radius and mass and, for the most massive objects, volume, density, and surface gravity, if these values are available.
The radii of these objects range over three orders of magnitude, from planetary-mass objects like dwarf planets and some moons to the planets and the Sun. This list does not include small Solar System bodies , but it does include a sample of possible planetary-mass objects whose shapes have yet to be determined.
The following is a list of Solar System objects by orbit, ordered by increasing distance from the Sun. Most named objects in this list have a diameter of 500 km or more. Most named objects in this list have a diameter of 500 km or more.
An overview of ranges of mass. To help compare different orders of magnitude, the following lists describe various mass levels between 10 −67 kg and 10 52 kg. The least massive thing listed here is a graviton, and the most massive thing is the observable universe.
The first image compares some of the largest TNOs in terms of size, color and albedo. This is a list of trans-Neptunian objects (TNOs), which are minor planets in the Solar System that orbit the Sun at a greater distance on average than Neptune , that is, their orbit has a semi-major axis greater than 30.1 astronomical units (AU).
On a human time scale, these perturbations can be accounted for using numerical models, [53]: 9-6 but the planetary system can change chaotically over billions of years. [ 54 ] The angular momentum of the Solar System is a measure of the total amount of orbital and rotational momentum possessed by all its moving components. [ 55 ]
Below, you’ll find an assortment of images with hidden objects. Think of them as hidden picture games for all moods and seasons. Up the challenge by giving yourself only 45 seconds to spot each ...
Distance of these objects are derived from their measured redshifts, which depend on the cosmological models used. >1 Rm – >105.7 billion light-years – size of universe beyond the cosmic light horizon , depending on its curvature; if the curvature is zero (i.e. the universe is spatially flat), the value can be infinite (see Shape of the ...