The Moon and Saturn will make a close approach, passing within 6°10' of each other. The Moon will be 9 days old.
From Cambridge , the pair will be visible in the evening sky, becoming accessible around 16:51 (EDT), 42° above your south-eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 18:29, 48° above your southern horizon. They will continue to be observable until around 23:31, when they sink below 11° above your western horizon.
The Moon will be at mag -12.1 in Pisces; and Saturn will be at mag 0.6 in Cetus.
They will be too widely separated to fit within the field of view of a telescope or pair of binoculars, but will be visible to the naked eye.
At around the same time, the pair will also share the same right ascension – called a conjunction.
A graph of the angular separation between the Moon and Saturn around the time of closest approach is available here.
The positions of the pair at the moment of closest approach will be as follows:
| Object | Right Ascension | Declination | Constellation | Magnitude | Angular Size |
| The Moon | 00h20m40s | 6°12'N | Pisces | -12.1 | 31'04"4 |
| Saturn | 00h31m50s | 0°42'N | Cetus | 0.6 | 18"1 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 101° from the Sun, which is in Ophiuchus at this time of year.
The sky on 17 Dec 2026
| The sky on 17 December 2026 | ||||||||||||||||||||||||||||||||||
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64% 8 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
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| 09 Aug 2027 | – Saturn enters retrograde motion |
| 17 Oct 2027 | – Saturn at opposition |
| 23 Dec 2027 | – Saturn ends retrograde motion |
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.