Mercury and 1 Ceres will share the same right ascension, with Mercury passing 2°38' to the south of 1 Ceres.
From South El Monte however, the pair will not be readily observable since they will be very close to the Sun, at a separation of only 20° from it.
Mercury will be at mag -0.6, and 1 Ceres at mag 8.8, both in the constellation Libra.
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 Mercury and 1 Ceres 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 | 15h26m50s | 16°44'S | Libra | -0.6 | 6"0 |
| 1 Ceres | 15h26m50s | 14°06'S | Libra | 8.8 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 19° from the Sun, which is in Ophiuchus at this time of year.
The sky on 30 Apr 2026
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99% 13 days old |
All times shown in PDT.
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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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| 15 Sep 2080 | – 1 Ceres at opposition |
| 17 Dec 2081 | – 1 Ceres at opposition |
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.