Conjunction of Jupiter and Mercury

Dominic Ford, Editor
From the Conjunctions feed


Jupiter and Mercury will share the same right ascension, with Jupiter passing 33' to the south of Mercury.

From Fairfield however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 7° above the horizon at dawn.

Jupiter will be at mag -1.8, and Mercury at mag -1.2, both in the constellation Cancer.

The pair will be a little too widely separated to fit comfortably within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.

A graph of the angular separation between Jupiter and Mercury 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
Jupiter 08h49m20s 18°17'N Cancer -1.8 30"7
Mercury 08h49m20s 18°50'N Cancer -1.2 5"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 12° from the Sun, which is in Leo at this time of year.

The sky on 15 Aug 2026

The sky on 15 August 2026
Sunrise
05:59
Sunset
19:51
Twilight ends
21:36
Twilight begins
04:14


Waxing Crescent

12%

3 days old

Planets
Rise Culm. Set
Mercury 04:55 12:08 19:20
Venus 09:57 15:44 21:31
Moon 09:21 15:20 21:08
Mars 01:54 09:27 17:01
Jupiter 04:55 12:06 19:16
Saturn 21:59 04:13 10:27
All times shown in EDT.

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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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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