The planets Venus and Neptune will make a close approach, passing within a mere 17.8 arcminutes of each other.
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 0° above the horizon at dawn.
Venus will be at mag -4.0; and Neptune will be at mag 7.9. Both objects will lie in the constellation Pisces.
They will be close enough to fit within the field of view of a telescope, but will also be visible 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 Venus and Neptune 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 |
| Venus | 01h53m00s | 9°30'N | Pisces | -4.0 | 13"6 |
| Neptune | 01h52m40s | 9°46'N | Pisces | 7.9 | 2"2 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 36° from the Sun, which is in Taurus at this time of year.
The sky on 7 Jul 2024
| The sky on 7 July 2024 | ||||||||||||||||||||||||||||||||||
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5% 2 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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Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.