Dwarf planet
A dwarf planet is a celestial body orbiting a star, massive enough to be nearly spherical, but not massive enough to clear neighboring objects from its orbit.
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Volcanic Moon
A volcanic moon is a natural satellite characterized by intense internal activity, producing eruptions, lava flows, and constant transformations of its surface.
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Icy Moon
An icy moon is a natural satellite whose surface is dominated by ice, often associated with an internal ocean, fractures, and possible cryovolcanic activity.
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Rocky Moon
A rocky moon is a natural satellite dominated by solid mineral materials, characterized by a crust, mantle, and sometimes a differentiated core, without a significant gaseous envelope.
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Hydrothermal Moon
A hydrothermal moon is a natural satellite where the interaction between internal heat, ice, and liquid water generates hydrothermal circulations, sources of chemical exchanges and geological dynamics.
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C-type Asteroid
A C-type asteroid is a carbon-rich celestial body, generally dark, composed of primitive materials, reflecting the early chemical conditions of the solar system.
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S-type asteroid
An S-type asteroid is a rocky body dominated by silicates and nickel-iron, showing a relatively reflective surface and evidence of differentiated composition.
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M-type asteroid
An M-type asteroid is a metallic body of the solar system, mainly composed of iron and nickel, with a reflective surface indicating a dense and differentiated composition.
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D-type asteroid
A D-type asteroid is a dark body rich in organic and volatile compounds, showing low reflectivity and primitive features close to the original materials of the solar system.
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Short-Period Comet
A short-period comet is an icy body of the Solar System, characterized by an elliptical orbit with a return of less than two centuries, regularly approaching the Sun.
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Long-Period Comet
A long-period comet is an icy body of the Solar System whose highly elliptical orbit takes thousands or millions of years to bring the object back near the Sun.
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Hyperbolic Comet
A hyperbolic comet is an icy body whose open trajectory follows a hyperbolic orbit, causing it to pass through the Solar System without remaining gravitationally bound to it.
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