Mercury and Mars will share the same right ascension, with Mercury passing 40' to the south of Mars.
At around the same time, the two objects will also make a close approach, technically called an appulse.
From South El Monte however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 2° above the horizon at dawn.
Mercury will be at mag -0.2, and Mars at mag 1.2, both in the constellation Capricornus.
The pair will be a little too widely separated to fit comfortably within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.
A graph of the angular separation between Mercury and Mars 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 |
| Mercury | 21h30m40s | 16°33'S | Capricornus | -0.2 | 5"5 |
| Mars | 21h30m40s | 15°52'S | Capricornus | 1.2 | 4"1 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 21° from the Sun, which is in Aquarius at this time of year.
The sky on 6 Jul 2026
| The sky on 6 July 2026 | ||||||||||||||||||||||||||||||||||
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56% 22 days old |
All times shown in PDT.
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Source
The circumstances of this event were computed using the DE440 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.