The Moon and Jupiter will make a close approach, passing within 1°14' of each other. From some parts of the world, the Moon will pass in front of Jupiter, creating a lunar occultation. The Moon will be 6 days old.
From Cambridge , the pair will become visible at around 20:14 (EST), 57° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting at 01:50.
The Moon will be at mag -11.9 in Cancer; and Jupiter will be at mag -2.1 in Leo.
They will be too widely separated to fit within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.
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 Jupiter 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 | 09h20m40s | 15°14'N | Cancer | -11.9 | 32'13"7 |
| Jupiter | 09h22m40s | 16°23'N | Leo | -2.1 | 36"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 86° from the Sun, which is in Aries at this time of year.
The sky on 12 May 2027
| The sky on 12 May 2027 | ||||||||||||||||||||||||||||||||||
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52% 6 days old |
All times shown in EDT.
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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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| 13 May 2028 | – Jupiter 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.