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Conjunction of Venus and Mercury

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

Venus and Mercury will share the same right ascension, with Venus passing 6°48' to the south of Mercury.

From Cambridge however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be 2° below the horizon at dusk.

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Venus will be at mag -4.3, and Mercury at mag -0.3, both in the constellation Virgo.

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

A graph of the angular separation between Venus 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
Venus 14h16m20s -21°32' Virgo -4.3 56"4
Mercury 14h16m20s -14°43' Virgo -0.3 5"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 19° from the Sun, which is in Virgo at this time of year.

The sky on 14 October 2018
Twilight ends
Twilight begins

5-day old moon
Waxing Crescent


5 days old

Rise Culm. Set
Mercury 08:21 13:29 18:37
Venus 08:49 13:29 18:08
Moon 12:32 17:14 21:57
Mars 15:27 20:12 00:58
Jupiter 09:48 14:41 19:35
Saturn 12:53 17:27 22:00
All times shown in EDT.


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.


The circumstances of this event were computed using the DE405 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.

Related news

25 Sep 2018  –  Venus at greatest brightness
26 Oct 2018  –  Venus at inferior solar conjunction
29 Nov 2018  –  Venus at greatest brightness
14 Dec 2018  –  Venus reaches highest point in morning sky

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