Venus and Neptune will share the same right ascension, with Venus passing 50' to the south of Neptune.
From Cambridge however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 8° above the horizon at dusk.
Venus will be at mag -3.9, and Neptune at mag 8.0, both in the constellation Aquarius.
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 Venus and Neptune 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 |
| Venus | 22h32m40s | 10°46'S | Aquarius | -3.9 | 11"0 |
| Neptune | 22h32m40s | 9°56'S | Aquarius | 8.0 | 2"2 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 23° from the Sun, which is in Capricornus at this time of year.
The sky on 26 Jun 2024
| The sky on 26 June 2024 | ||||||||||||||||||||||||||||||||||
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73% 20 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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| 16 Nov 2014 | – Neptune ends retrograde motion |
| 12 Jun 2015 | – Neptune enters retrograde motion |
| 31 Aug 2015 | – Neptune at opposition |
| 18 Nov 2015 | – Neptune 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.