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  2. Opposition (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Opposition_(astronomy)

    Diagram of positional astronomy. In positional astronomy, two astronomical objects are said to be in opposition when they are on opposite sides of the celestial sphere, as observed from a given body (usually Earth). A planet (or asteroid or comet) is said to be "in opposition" or "at opposition" when it is in opposition to the Sun.

  3. Solar System - Wikipedia

    en.wikipedia.org/wiki/Solar_System

    The principal component of the Solar System is the Sun, a G-type main-sequence star that contains 99.86% of the system's known mass and dominates it gravitationally. [37] The Sun's four largest orbiting bodies, the giant planets, account for 99% of the remaining mass, with Jupiter and Saturn together comprising more than 90%.

  4. Heliocentric orbit - Wikipedia

    en.wikipedia.org/wiki/Heliocentric_orbit

    Trans-Mars injection diagram. A = Hohmann transfer orbit. B = Conjunction mission. C = Opposition mission. A trans-Mars injection (TMI) is a heliocentric orbit in which a propulsive maneuver is used to set a spacecraft on a trajectory, also known as Mars transfer orbit, which will place it as far as Mars orbit.

  5. Syzygy (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Syzygy_(astronomy)

    The word is often used in reference to the Sun, Earth, and either the Moon or a planet, where the latter is in conjunction or opposition. Solar and lunar eclipses occur at times of syzygy, as do transits and occultations. The term is often applied when the Sun and Moon are in conjunction or in opposition . [4]

  6. The Sun in Capricorn Opposite Mars Retrograde Is All About ...

    www.aol.com/sun-capricorn-opposite-mars...

    The Sun in Capricorn Opposite Mars Retrograde Is All About Ambition, and These 4 Signs Are About to Have Their Work-Life Balance Rocked Valerie Mesa January 15, 2025 at 10:00 AM

  7. Portal:Solar System - Wikipedia

    en.wikipedia.org/wiki/Portal:Solar_System

    The Sun and planets of the Solar System (distances not to scale). The Solar System is the gravitationally bound system of the Sun and the objects that orbit it. It formed about 4.6 billion years ago when a dense region of a molecular cloud collapsed, forming the Sun and a protoplanetary disc.

  8. Solar conjunction - Wikipedia

    en.wikipedia.org/wiki/Solar_conjunction

    Solar conjunction between Earth and Mars. Solar conjunction generally occurs when a planet or other Solar System object is on the opposite side of the Sun from the Earth.From an Earth reference, the Sun will pass between the Earth and the object.

  9. Solar System belts - Wikipedia

    en.wikipedia.org/wiki/Solar_System_belts

    Solar System belts are asteroid and comet belts that orbit the Sun in the Solar System in interplanetary space. [1] [2] The Solar System belts' size and placement are mostly a result of the Solar System having four giant planets: Jupiter, Saturn, Uranus and Neptune far from the sun. The giant planets must be in the correct place, not too close ...