The planets Venus and Jupiter will make a close approach, passing within a mere 20.1 arcminutes of each other.
From Cambridge , the pair will become visible at around 20:46 (EDT), 20° above your western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 2 hours and 22 minutes after the Sun at 22:47.
Venus will be at mag -4.4; and Jupiter will be at mag -1.8. Both objects will lie in the constellation Leo.
They will be close enough to fit within the field of view of a telescope, but will also be visible to the naked eye or through a pair of binoculars.
A graph of the angular separation between Venus 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 coordinates above are given in J2000.0. The pair will be at an angular separation of 42° from the Sun, which is in Gemini at this time of year.
The sky on 21 Sep 2023
|The sky on 21 September 2023|
6 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.
|06 Feb 2015||– Jupiter at opposition|
|08 Mar 2016||– Jupiter at opposition|
|07 Apr 2017||– Jupiter at opposition|
|08 May 2018||– Jupiter at opposition|
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.