Neptune and 1 Ceres will share the same right ascension, with Neptune passing 2°19' to the north of 1 Ceres.
From South El Monte , the pair will be visible in the dawn sky, rising at 01:49 (PDT) and reaching an altitude of 37° above the eastern horizon before fading from view as dawn breaks at around 04:56.
Neptune will be at mag 7.9, and 1 Ceres at mag 9.0, both in the constellation Taurus.
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 Neptune 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 |
| Neptune | 04h55m40s | 21°07'N | Taurus | 7.9 | 2"2 |
| 1 Ceres | 04h55m40s | 18°48'N | Taurus | 9.0 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 58° from the Sun, which is in Cancer at this time of year.
The sky on 29 Mar 2026
| The sky on 29 March 2026 | ||||||||||||||||||||||||||||||||||
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89% 10 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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Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.