1 Ceres and 134340 Pluto will share the same right ascension, with 1 Ceres passing 1°07' to the south of 134340 Pluto.
From South El Monte , the pair will be visible in the morning sky, becoming accessible around 23:13, when they reach an altitude of 21° above your eastern horizon. They will then reach their highest point in the sky at 04:17, 75° above your southern horizon. They will be lost to dawn twilight around 05:55, 63° above your south-western horizon.
1 Ceres will be at mag 7.8, and 134340 Pluto at mag 14.7, both in the constellation Leo.
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 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 | 11h18m50s | 18°13'N | Leo | 7.8 | 0"0 |
| 134340 Pluto | 11h18m50s | 19°20'N | Leo | 14.7 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 119° from the Sun, which is in Sagittarius at this time of year.
The sky on 26 Dec 2025
| The sky on 26 December 2025 | ||||||||||||||||||||||||||||||||||
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42% 6 days old |
All times shown in PST.
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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.
Related news
| 27 Feb 1962 | – 134340 Pluto at opposition |
| 02 Mar 1963 | – 134340 Pluto at opposition |
| 03 Mar 1964 | – 134340 Pluto at opposition |
| 05 Mar 1965 | – 134340 Pluto 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.