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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 ...
Planetary transits and occultations. 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 ...
Methods of detecting exoplanets. Number of extrasolar planet discoveries per year through 2022, with colors indicating method of detection: Direct imaging. Microlensing. Transit. Radial velocity. Timing. Any planet is an extremely faint light source compared to its parent star.
55 Cancri e (abbreviated 55 Cnc e, also known as Janssen / ˈdʒænsən /) is an exoplanet orbiting a Sun -like host star, 55 Cancri A. The mass of the exoplanet is about eight Earth masses and its diameter is about twice that of the Earth. [ 3 ] 55 Cancri e was discovered on 30 August 2004, thus making it the first super-Earth discovered ...
Minor-planet moon, also known as Asteroid moon – Natural satellite of a minor planet. Natural satellites of the Solar System – Astronomical body that orbits a planet. Subsatellite, also known as a submoon or moonmoon. Tidally detached exomoon – Planet that was formerly a moon of another planet.
The first planetary transit observed (by already known exoplanet) was caused by HD 209458 b. The most massive transiting exoplanet is KELT-1b which masses 27.23 MJ (making it a brown dwarf) while the least massive is Kepler-42d which masses less than 0.003 MJ or 0.9 ME. [2] The largest exoplanet known is HAT-P-32b which is 2.037 RJ.
Wide Angle Search for Planets. WASP or Wide Angle Search for Planets is an international consortium of several academic organisations performing an ultra-wide angle search for exoplanets using transit photometry. The array of robotic telescopes aims to survey the entire sky, simultaneously monitoring many thousands of stars at an apparent ...
A transit of Mercury across the Sun takes place when the planet Mercury passes directly between the Sun and a superior planet. During a transit, Mercury appears as a tiny black dot moving across the Sun as the planet obscures a small portion of the solar disk. Because of orbital alignments, transits viewed from Earth occur in May or November.