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The number of dwarf planets in the Solar System is unknown. Estimates have run as high as 200 in the Kuiper belt [1] and over 10,000 in the region beyond. [2] However, consideration of the surprisingly low densities of many large trans-Neptunian objects, as well as spectroscopic analysis of their surfaces, suggests that the number of dwarf planets may be much lower, perhaps only nine among ...
There have been thirty-three overall missions towards minor planets, with four of them being flyby missions that were not intended to explore minor planets, marked in grey background. [1] [2] Many minor planets are in two domains: Asteroid belt, between 2–3 AU (0.30–0.45 billion km) Kuiper belt, between 30–60 AU (4.5–9.0 billion km)
These lists contain the Sun, the planets, dwarf planets, many of the larger small Solar System bodies (which includes the asteroids), all named natural satellites, and a number of smaller objects of historical or scientific interest, such as comets and near-Earth objects.
NASA: N/A: Lander: A probe designed to land on Pluto, similar to the proposed Triton Hopper mission. N/A [19] Mariner Mark II: NASA: N/A [a] N/A [a] Proposed family of spacecraft intended to explore dwarf planets and trans-Neptunian objects, later replaced by the lower-cost Discovery Program. N/A: N/A New Horizons 2: NASA: N/A: Flyby
This list of exoplanets discovered in 2025 is a list of confirmed exoplanets that were first reported in 2025. For exoplanets detected only by radial velocity , the listed value for mass is a lower limit.
This is a list of the lists of small Solar System bodies and dwarf planets. Lists of comets; List of minor planets; List of named minor planets (alphabetical) List of named minor planets (numerical) List of exceptional asteroids; List of trans-Neptunian objects; List of fast rotators (minor planets) List of slow rotators (minor planets)
a A minor planet's dimensions may be described by x, y, and z axes instead of an (average) diameter due to its non-spherical, irregular shape. b Closest approach given in multiples of the minor planet's mean radius · List ordered in ascending order by a minor planet's first visit.
About 6% of white dwarfs show infrared excess due to a disk around a white dwarf. [66] In the past only a relative small sample of white dwarf disks was known. [67] Due to advances in white dwarf detection (e.g. with Gaia or LAMOST) and improvement of WISE infrared catalogs with unWISE/CatWISE, the number has increased to hundreds of candidates.