1 Ceres and 134340 Pluto will share the same right ascension, with 1 Ceres passing 9°32' to the north of 134340 Pluto.
From South El Monte , the pair will be visible in the evening sky, becoming accessible around 17:46 (PDT), 41° above your south-eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 19:20, 46° above your southern horizon. They will continue to be observable until around 23:02, when they sink below 21° above your south-western horizon.
1 Ceres will be at mag 8.4, and 134340 Pluto at mag 16.4, both in the constellation Cetus.
A graph of the angular separation between 1 Ceres and 134340 Pluto 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 |
| 1 Ceres | 01h30m10s | 0°21'N | Cetus | 8.4 | 0"0 |
| 134340 Pluto | 01h30m10s | 9°10'S | Cetus | 16.4 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 111° from the Sun, which is in Sagittarius at this time of year.
The sky on 4 May 2026
| The sky on 4 May 2026 | ||||||||||||||||||||||||||||||||||
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89% 17 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.