Venus and Neptune will share the same right ascension, with Venus passing 0°01' to the south of Neptune.
Venus will be at mag -3.9, and Neptune at mag 7.9, both in the constellation Pisces.
The pair will be close enough to fit within the field of view of a telescope, but will also 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|
The coordinates above are given in J2000.0. The pair will be at an angular separation of 24° from the Sun, which is in Aries at this time of year.
|The sky on 18 October 2021|
12 days old
All times shown in EDT.
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.
|14 Oct 2034||– Neptune at opposition|
|16 Oct 2035||– Neptune at opposition|
|18 Oct 2036||– Neptune at opposition|
|20 Oct 2037||– Neptune at opposition|
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.