1 Ceres and 136199 Eris will share the same right ascension, with 1 Ceres passing 47' to the north of 136199 Eris.
From Cambridge , the pair will be visible between 18:14 and 01:46. They will become accessible at around 18:14, when they rise to an altitude of 21° above your south-eastern horizon. They will reach their highest point in the sky at 22:00, 44° above your southern horizon. They will become inaccessible at around 01:46 when they sink below 21° above your south-western horizon.
1 Ceres will be at mag 7.7, and 136199 Eris at mag 18.7, both in the constellation Cetus.
The pair will be a little too widely separated to fit comfortably 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 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 |
| 1 Ceres | 01h42m50s | 1°55'S | Cetus | 7.7 | 0"0 |
| 136199 Eris | 01h42m50s | 2°43'S | Cetus | 18.7 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 151° from the Sun, which is in Libra at this time of year.
The sky on 11 Nov 2016
| The sky on 11 November 2016 | ||||||||||||||||||||||||||||||||||
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89% 12 days old |
All times shown in EST.
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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
| 16 Oct 2016 | – 136199 Eris at opposition |
| 16 Oct 2017 | – 136199 Eris at opposition |
| 17 Oct 2018 | – 136199 Eris at opposition |
| 17 Oct 2019 | – 136199 Eris 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.