The planetary society is the largest and most effective nonprofit organization that promotes the exploration of space through education advocacy and innovative projects.
What is a planetary satellite.
Cheops keeps its promise.
This is a list of the recognized moons of the planets and of the largest potential dwarf planets of the solar system ordered by their official roman numeral designations the 19 moons that are large enough to have been rounded by their own gravity are listed in bold the seven largest moons which are larger than any of the known dwarf planets are listed in bold and italic.
Schoolyard solar system demonstration scale model of the solar system for the classroom.
A satellite is a companion body that orbits a planet.
A natural satellite or moon is in the most common usage an astronomical body that orbits a planet or minor planet or sometimes another small solar system body.
Planetary fact sheet values compared to earth.
References where known are shown in square brackets e g.
We consider the problem of an artificial satellite perturbed by the nonuniform distribution of the mass of the moon.
Satellite imagery is making this possible at a scale never before possible.
Planetary fact sheet in u s.
1 following the particular value.
Low altitude near polar orbits are very desirable as science orbits for missions to planetary satellites such as the earth s moon.
Probably the best known planetary satellite is earth s moon.
Notes on the fact sheets explanations of the values and headings in the fact sheet.
Planet for forestry and land use improve timber harvest operations monitor and manage forest assets and operations track changes in land use and land cover and localize forest clearing in near real time with high cadence high resolution imagery.
Observations with the space telescope have revealed details of the exoplanet wasp 189b one of the most extreme planets known.
Planetary satellite physical parameters the following tables provide known physical parameters for planetary satellites.
Index of planetary fact sheets more detailed fact sheets for each planet.
Four iau listed dwarf planets are also known to have natural satellites.
Planetary satellites often called moons are not to be confused with man made satellites such as weather and communications satellites in orbit around the earth.
Cheops is a joint mission by the european.
In the solar system there are six planetary satellite systems containing 205 known natural satellites.
Pluto haumea makemake and eris.