This article is about the passage of one celestial body in front of another. For the passage of a body over a meridian, see Culmination. For the passage of a star across the field of view of a telescope eyepiece, see Star transit.
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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 body, covering a small portion of it.[1]
The word "transit" refers to cases where the nearer object appears smaller than the more distant object. Cases where the nearer object appears larger and completely hides the more distant object are known as occultations.
However, the probability of seeing a transiting planet is low because it is dependent on the alignment of the three objects in a nearly perfectly straight line.[2] Many parameters of a planet and its parent star can be determined based on the transit.
^"Definition of TRANSIT". www.merriam-webster.com. Retrieved 16 December 2018.
^"Transit Method | Las Cumbres Observatory". lco.global. Retrieved 27 November 2018.
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Daniel J.; Gaudi, B. Scott (2013). "A Posteriori Transit Probabilities". Publications of the Astronomical Society of the Pacific. 125 (930): 933–950. arXiv:1305...
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