Jupiter and 1 Ceres will share the same right ascension, with Jupiter passing 2°50' to the north of 1 Ceres.
From Cambridge, the pair will become visible around 18:10 (EDT) as the dusk sky fades, 15° above your south-western horizon. They will then sink towards the horizon, setting 2 hours and 26 minutes after the Sun at 20:16.
Jupiter will be at mag -1.9, and 1 Ceres at mag 9.3, both in the constellation Ophiuchus.
The pair will be too widely separated to fit within the field of view of a telescope, but will be visible through a pair of binoculars.
A graph of the angular separation between Jupiter and 1 Ceres 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 50° from the Sun, which is in Virgo at this time of year.
|The sky on 24 October 2019|
26 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.
|29 May 2019||– 1 Ceres at opposition|
|13 Jan 2020||– 1 Ceres at solar conjunction|
|17 Aug 2020||– 1 Ceres at aphelion|
|28 Aug 2020||– 1 Ceres at opposition|
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.