solar system
B1Neutral (common in everyday, academic, and technical contexts)
Definition
Meaning
The Sun together with the group of celestial bodies that are held by its gravitational attraction and revolve around it, including planets, dwarf planets, moons, asteroids, meteoroids, and comets.
Any similar system of celestial bodies orbiting a star or stars; used metaphorically to describe any complex system with a central, governing body around which other entities revolve or depend.
Linguistics
Semantic Notes
The term is often capitalised ('Solar System') when referring specifically to our own planetary system. It functions grammatically as a compound noun. The conceptual boundary can be fluid, sometimes including the Oort Cloud, and is distinct from a 'galaxy' or 'universe'.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling remains the same.
Connotations
Identical connotations in both varieties. The term carries a strong association with primary/secondary school science education and astronomy.
Frequency
Equally common and high-frequency in both British and American English.
Vocabulary
Collocations
Grammar
Valency Patterns
[Determiner] + solar system + [Prepositional Phrase (e.g., *is vast*)][Verb (e.g., *explore, study, leave*)] + [Determiner] + solar systemVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “It's not rocket science... oh wait, it is solar system science (humorous)”
- “To think you're the centre of the solar system (idiomatic for being self-centred)”
Usage
Context Usage
Business
Rare. Possibly in contexts like space tourism or satellite technology (e.g., 'Our new propulsion system could revolutionise travel within the solar system.').
Academic
Extremely common in astronomy, astrophysics, and planetary science disciplines.
Everyday
Common in general conversation about space, science, education, and news (e.g., 'My son built a model of the solar system for school.').
Technical
Precise use in astronomy to denote the specific gravitationally bound system of the Sun and its orbiting bodies.
Examples
By Part of Speech
adjective
British English
- solar-system science
- a solar-system-wide phenomenon
American English
- solar system exploration
- solar-system models
Examples
By CEFR Level
- We live in the solar system.
- The solar system has eight planets.
- The Sun is in the middle of our solar system.
- Scientists are constantly discovering new objects in our solar system.
- Jupiter is the largest planet in the solar system.
- How many planets are there in our solar system?
- The probe was designed to explore the outer reaches of the solar system.
- The formation of the solar system is a key topic in astrophysics.
- Comparative planetology studies the different worlds within our solar system.
- The proposed mission aims to map the heliopause, the boundary where the solar system meets interstellar space.
- Gravitational perturbations from a passing star could theoretically disrupt the orbits of solar system bodies.
- The cosmochemical signatures of meteorites provide a window into the solar system's primordial conditions.
Learning
Memory Aids
Mnemonic
Think of SOLAR (from the Sun) SYSTEM (an organised group). Remember: Our SOL (Sun) AR (are) all the planets in the SYSTEM.
Conceptual Metaphor
A CENTRAL AUTHORITY WITH SUBORDINATES (e.g., 'In our company, the CEO is the sun, and the departments are planets in a solar system.'); A DEFINED REALM OF INFLUENCE.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Прямой перевод "солнечная система" является точным и не вызывает проблем.
- Не путать с "галактика" (galaxy) или "вселенная" (universe).
Common Mistakes
- Using 'solar system' to refer to a galaxy (e.g., 'The Milky Way is a solar system' - INCORRECT).
- Incorrect pluralisation: 'solars systems' (INCORRECT) vs. 'solar systems' (CORRECT).
- Misspelling as 'solor system'.
Practice
Quiz
What does the term 'solar system' specifically refer to?
FAQ
Frequently Asked Questions
Yes, Pluto is a part of our solar system. It is classified as a dwarf planet and orbits the Sun in the Kuiper Belt.
The Sun, a G-type main-sequence star, is at the gravitational centre of our solar system.
Our solar system is approximately 4.6 billion years old, formed from the gravitational collapse of a giant interstellar molecular cloud.
Yes. Systems of planets and other bodies orbiting a star are called 'planetary systems' or 'extrasolar systems'. Our own is called the Solar System.
Explore