Venus and 136199 Eris will share the same right ascension, with Venus passing 5°44' to the north of 136199 Eris.
From South El Monte however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be 5° below the horizon at dawn.
Venus will be at mag -3.9, and 136199 Eris at mag 18.5, both in the constellation Pisces.
A graph of the angular separation between Venus and 136199 Eris 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 |
| Venus | 01h57m20s | 10°19'N | Pisces | -3.9 | 10"7 |
| 136199 Eris | 01h57m20s | 4°35'N | Pisces | 18.5 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 22° from the Sun, which is in Taurus at this time of year.
The sky on 25 Dec 2025
| The sky on 25 December 2025 | ||||||||||||||||||||||||||||||||||
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36% 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.
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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.