PLANETARY SYSTEMS Meaning and
Definition
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Planetary systems refer to the collection of celestial bodies, including planets, moons, asteroids, comets, and other objects, that orbit around a star. These systems are commonly found in the universe and are often considered fundamental building blocks of galaxies. A planetary system typically revolves around a central star, known as the parent star or the primary, which exerts gravitational forces on the surrounding celestial objects, keeping them in their respective orbits.
The most well-known planetary system is our own solar system, which consists of the Sun as the central star and eight planets, along with their moons, dwarf planets, asteroids, and comets. However, there are countless other planetary systems scattered throughout the universe.
Planetary systems are formed from vast clouds of gas and dust, called nebulae, that undergo gravitational collapse. The material in these clouds begins to clump together due to its own gravity, forming a swirling disk known as a protoplanetary disk. Within this disk, matter begins to accumulate and accrete, leading to the formation of protoplanets. Over time, some of these protoplanets become large enough to clear their orbits and develop into planets, while others may remain as dwarf planets or, in some cases, become moons of larger planets.
The study of planetary systems, also known as planetary science or exoplanetology, seeks to understand the formation, evolution, and characteristics of these systems. Astronomers and scientists use various techniques, such as telescopes, space probes, and mathematical models, to observe and analyze planetary systems in order to gain insights into the broader workings of the universe and the possibility of extraterrestrial life.
Common Misspellings for PLANETARY SYSTEMS
- planetery system
- olanetary systems
- llanetary systems
- -lanetary systems
- 0lanetary systems
- pkanetary systems
- ppanetary systems
- poanetary systems
- plznetary systems
- plsnetary systems
- plwnetary systems
- plqnetary systems
- plabetary systems
- plametary systems
- plajetary systems
- plahetary systems
- planwtary systems
- planstary systems
- plandtary systems
- planrtary systems
Etymology of PLANETARY SYSTEMS
The word "planetary systems" can be broken down into two components: "planetary" and "systems".
1. Planetary:
The term "planetary" comes from the Latin word "planeta", which means "wandering star". In ancient astronomy, "planets" referred to the celestial bodies that appeared to move across the night sky relative to the fixed stars.
2. Systems:
The word "system" originates from the Latin word "systema", which came from the Greek word "sustēma". It implies "organized whole" or "composite structure" and is derived from the Greek word "synistanai", meaning "to place together".
When combined, "planetary systems" refers to the organized whole or composite structure of planets that revolve around a central star.
