A celestial body that emits light and heat, crucial for sustaining life on Earth, and is classified as a star within our solar system.
A source of hope and brightness in a metaphorical sense, representing aspiration and positivity in one’s heart or life.
The central object in the solar system, around which planets, including Earth, revolve; characterized as a massive sphere of hot gases with defined layers such as the photosphere, chromosphere, and corona.
A measure of time, defined by the duration it takes for the Earth to complete one orbit around the sun, approximately 365.24 days, which forms the basis of the solar calendar.
Example:
マリーゴールドは太陽とともに起きる。
The beams of light emitted by the sun, which illuminate and provide warmth to the Earth.
The visible light and energy that travel from the sun, playing a crucial role in sustaining life and influencing climate.
The radiant energy that comes from the sun, often described in terms of its effects on the environment and natural phenomena.
A method of generating electricity by converting sunlight into electrical energy, often utilizing solar panels or photovoltaic cells.
An energy production technique that harnesses the sun's rays and transforms them into usable electrical power, promoting renewable energy solutions.
A technology that captures solar radiation for the purpose of producing electricity, contributing to sustainable energy practices.
Example:
１平方メートルの太陽光発電パネルの出力は約１ワットであり、今のところ大規模に太陽電力を利用するのは困難である。
A system of measuring time that is based on the Earth's orbit around the Sun, consisting of years comprised of approximately 365 days, with an additional day added every four years to account for the extra time it takes to complete a full orbit.
A calendar type that aligns with the seasons by tracking the cyclical changes influenced by the Sun, serving as the internationally recognized standard calendar known as the Gregorian calendar.
A method of timekeeping that creates a yearly structure reflective of the natural solar year, which has been adopted in various cultures, including Japan since the Meiji period.
A celestial system that consists of the Sun at its center, surrounded by a group of celestial bodies, including planets, moons, dwarf planets, asteroids, and comets, all of which are primarily influenced by the Sun's gravitational pull.
The collective term for the various celestial bodies, such as Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, that orbit the Sun, as well as additional smaller bodies like Pluto and Ceres.
An astronomical configuration where numerous objects, including different types of planets and smaller celestial bodies, revolve around the Sun, which provides the necessary light and heat to support life on Earth.
Example:
海王星は太陽系の8番目の惑星だ。