Transit of Mars from Uranus

A [[Astronomical transit|transit]] '''of''' [[Mars]] '''across the''' [[Sun]] '''as seen from''' [[Uranus]] takes place when the planet Mars passes directly between the Sun and Uranus, obscuring a small part of the Sun's disc for an observer on Uranus. During a transit, Mars can be seen from Uranus as a small black disc moving across the face of the Sun.

Naturally, no one has ever seen a transit of Mars from Uranus, nor is this likely to happen in the foreseeable future. Nevertheless, the next one will take place on December 13, 2018.

A transit could be observed from the surface of one of Uranus' moons rather than from Uranus itself. The times and circumstances of the transits would naturally be slightly different.

The Mars-Uranus [[synodic period]] is 702.653 days. It can be calculated using the formula 1/(1/P-1/Q), where P is the [[sidereal orbital period]] of Mars (686.98 days) and Q is the [[orbital period]] of Uranus (30,799.095 days).

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{| border cellspacing=0 cellpadding=5 align="center"
! Transits 2001-2100
|-
| December 13, 2018
|-
| November 13, 2020
|-
| June 26, 2059
|-
| June 1, 2061
|}

==Transit visibility table==
==See also==
* [[Astronomical transit]]

{{transit visibility table}}

==External links==
* [http://ssd.jpl.nasa.gov/?HORIZONS JPL Horizons]

{{Uranus}}
[[Category:Astronomical transits]]
[[Category:Uranus]]