The Moon and Mercury will share the same right ascension, with the Moon passing 7°01' to the south of Mercury. The Moon will be 2 days old.
From Cambridge , the pair will be difficult to observe as they will appear no higher than 12° above the horizon. They will become visible at around 20:42 (EDT), 12° above your north-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 1 hour and 51 minutes after the Sun at 22:02.
The Moon will be at mag -9.1 in the constellation Orion, and Mercury at mag -0.2 in the neighbouring constellation of Gemini.
The pair 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.
A graph of the angular separation between the Moon and Mercury 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 |
| The Moon | 06h01m00s | 18°35'N | Orion | -9.1 | 31'35"9 |
| Mercury | 06h01m00s | 25°37'N | Gemini | -0.2 | 6"8 |
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 29 May 2033
| The sky on 29 May 2033 | ||||||||||||||||||||||||||||||||||
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5% 1 day 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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| 03 Jun 2033 | – Mercury at highest altitude in evening sky |
| 07 Jun 2033 | – Mercury at greatest elongation east |
| 25 Jul 2033 | – Mercury at greatest elongation west |
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.