Mars and Uranus will share the same right ascension, with Mars passing 11' to the north of Uranus.
From Columbus however, the pair will not be readily observable since they will be very close to the Sun, at a separation of only 21° from it.
Mars will be at mag 1.5, and Uranus at mag 5.8, both in the constellation Taurus.
The pair will be close enough to fit within the field of view of a telescope, but will also 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 | 04h37m40s | 22°14'N | Taurus | 1.5 | 3"9 |
| Uranus | 04h37m40s | 22°02'N | Taurus | 5.8 | 3"4 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 21° from the Sun, which is in Gemini at this time of year.
The sky on 23 Jun 2028
| The sky on 23 June 2028 | ||||||||||||||||||||||||||||||||||
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3% 1 day old |
All times shown in EDT.
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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.
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Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.