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  2. Planetary transits and occultations - Wikipedia

    en.wikipedia.org/wiki/Planetary_transits_and...

    In astronomy, planetary transits and occultations occur when a planet passes in front of another object, as seen by an observer.The occulted object may be a distant star, but in rare cases it may be another planet, in which case the event is called a mutual planetary occultation or mutual planetary transit, depending on the relative apparent diameters of the objects.

  3. Astronomical transit - Wikipedia

    en.wikipedia.org/wiki/Astronomical_transit

    Astronomical transit. Phobos transits the Sun, as viewed by the Perseverance rover on 2 April 2022. In astronomy, a transit (or astronomical transit) is the passage of a celestial body directly between a larger body and the observer. As viewed from a particular vantage point, the transiting body appears to move across the face of the larger ...

  4. Planetary phase - Wikipedia

    en.wikipedia.org/wiki/Planetary_phase

    The evolution of the apparent diameter and phases of Venus. A planetary phase is a certain portion of a planet 's area that reflects sunlight as viewed from a given vantage point, as well as the period of time during which it occurs. The phase is determined by the phase angle, which is the angle between the planet, the Sun and the Earth.

  5. Transit-timing variation - Wikipedia

    en.wikipedia.org/wiki/Transit-timing_variation

    Transit-timing variation is a method for detecting exoplanets by observing variations in the timing of a transit. This provides an extremely sensitive method capable of detecting additional planets in the system with masses potentially as small as that of Earth. In tightly packed planetary systems, the gravitational pull of the planets among ...

  6. Syzygy (astronomy) - Wikipedia

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

    In astronomy, a syzygy (/ ˈsɪzədʒi / SIZ-ə-jee; from Ancient Greek συζυγία (suzugía) 'union, yoke') [1] is a roughly straight-line configuration of three or more celestial bodies in a gravitational system. [2] The word is often used in reference to the Sun, Earth, and either the Moon or a planet, where the latter is in conjunction ...

  7. Gliese 436 b - Wikipedia

    en.wikipedia.org/wiki/Gliese_436_b

    Gliese 436 b / ˈ ɡ l iː z ə / (sometimes called GJ 436 b, [7] formally named Awohali [2]) is a Neptune-sized exoplanet orbiting the red dwarf Gliese 436. [1] It was the first hot Neptune discovered with certainty (in 2007) and was among the smallest-known transiting planets in mass and radius, until the much smaller Kepler exoplanet discoveries began circa 2010.

  8. Astrological transit - Wikipedia

    en.wikipedia.org/wiki/Astrological_transit

    Astrology. Astrological transits are one of the main means used in horoscopic astrology to forecast future trends and developments (the other means used is astrological progression, which progresses the horoscope forward in time according to set methods). As its name implies, astrological transits involve a method of interpreting the ongoing ...

  9. 5 planets are about to be retrograde at the same time. What ...

    www.aol.com/news/5-planets-retrograde-same-time...

    A total of five planets are going retrograde between May and September: Mercury, Saturn, Uranus, Neptune and Pluto. "Retrograde" is a term used to describe when a planet's orbit appears to slow ...