1 Ceres and 136108 Haumea will share the same right ascension, with 1 Ceres passing 6°48' to the south of 136108 Haumea.
From South El Monte , the pair will be visible in the dawn sky, rising at 23:01 (PDT) and reaching an altitude of 76° above the south-eastern horizon before fading from view as dawn breaks at around 05:34.
1 Ceres will be at mag 8.3 in the constellation Leo, and 136108 Haumea at mag 17.3 in the neighbouring constellation of Leo Minor.
A graph of the angular separation between 1 Ceres and 136108 Haumea 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 | 10h48m10s | 17°32'N | Leo | 8.3 | 0"0 |
| 136108 Haumea | 10h48m10s | 24°21'N | Leo Minor | 17.3 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 88° from the Sun, which is in Scorpius at this time of year.
The sky on 6 Oct 2025
| The sky on 6 October 2025 | ||||||||||||||||||||||||||||||||||
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99% 15 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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| 20 Feb 1962 | – 136108 Haumea at opposition |
| 21 Feb 1963 | – 136108 Haumea at opposition |
| 22 Feb 1964 | – 136108 Haumea at opposition |
| 22 Feb 1965 | – 136108 Haumea 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.