Close approach of Jupiter and Mercury

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The planets Jupiter and Mercury will make a close approach, passing within a mere 23.5 arcminutes of each other.

From South El Monte , the pair will become visible at around 17:29 (PDT), 11° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 1 hour and 22 minutes after the Sun at 18:32.

Jupiter will be at mag -2.0; and Mercury will be at mag -0.8. Both objects will lie in the constellation Capricornus.

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.

At around the same time, the pair will also share the same right ascension – called a conjunction.

A graph of the angular separation between Jupiter and Mercury 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
Jupiter 21h09m00s 17°05'S Capricornus -2.0 32"2
Mercury 21h09m50s 17°26'S Capricornus -0.8 6"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 17° from the Sun, which is in Sagittarius at this time of year.

The sky on 19 May 2026

The sky on 19 May 2026
Sunrise
05:45
Sunset
19:49
Twilight ends
21:28
Twilight begins
04:06


Waxing Crescent

13%

3 days old

Planets
Rise Culm. Set
Mercury 06:05 13:12 20:19
Venus 07:47 15:04 22:21
Moon 08:22 15:58 23:29
Mars 04:23 10:56 17:28
Jupiter 09:27 16:34 23:41
Saturn 03:37 09:45 15:54
All times shown in PDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

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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31 Aug 1962  –  Jupiter at opposition
29 Oct 1962  –  Jupiter 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.

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