The Moon and Jupiter will make a close approach, passing within 5°22' of each other. The Moon will be 10 days old.
From Cambridge , the pair will be visible in the evening sky, becoming accessible around 20:06 (EST), 51° above your south-eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 21:06, 53° above your southern horizon. They will continue to be observable until around 02:45, when they sink below 7° above your western horizon.
The Moon will be at mag -12.4; and Jupiter will be at mag -2.3. Both objects will lie in the constellation Leo.
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 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 | 11h05m50s | 1°30'N | Leo | -12.4 | 32'33"1 |
| Jupiter | 11h15m20s | 6°20'N | Leo | -2.3 | 39"9 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 122° from the Sun, which is in Aries at this time of year.
The sky on 4 May 2028
| The sky on 4 May 2028 | ||||||||||||||||||||||||||||||||||
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81% 10 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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| 12 Mar 2028 | – Jupiter at opposition |
| 13 May 2028 | – Jupiter ends retrograde motion |
| 10 Feb 2029 | – Jupiter enters retrograde motion |
| 11 Apr 2029 | – Jupiter 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.