Mars and Uranus will share the same right ascension, with Mars passing 2°22' to the south of Uranus.
From Cambridge however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 19° above the horizon at dusk.
Mars will be at mag 0.0, and Uranus at mag 5.6, both in the constellation Ophiuchus.
The pair will be too widely separated to fit within the field of view of a telescope, but will be visible through a pair of binoculars.
A graph of the angular separation between Mars and Uranus around the time of closest approach is available here.
The positions of the two objects at the moment of conjunction will be as follows:
| Object | Right Ascension | Declination | Constellation | Magnitude | Angular Size |
| Mars | 16h32m50s | 24°17'S | Ophiuchus | 0.0 | 9"1 |
| Uranus | 16h32m50s | 21°54'S | Ophiuchus | 5.6 | 3"7 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 87° from the Sun, which is in Leo at this time of year.
The sky on 12 May 2025
| The sky on 12 May 2025 | ||||||||||||||||||||||||||||||||||
|
99% 15 days old |
All times shown in EDT.
|
|||||||||||||||||||||||||||||||||
Source
The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).
This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.
Related news
| 18 Aug 1984 | – Uranus ends retrograde motion |
| 22 Mar 1985 | – Uranus enters retrograde motion |
| 06 Jun 1985 | – Uranus at opposition |
| 22 Aug 1985 | – Uranus ends retrograde motion |
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.