Solar Conjunction

by Dominic Ford, Editor
Last updated: 16 Jul 2020
Solar Conjunction

The Moon appears as a thin crescent when it is close to solar conjunction, which is better known as new moon. Simulated image courtesy of Tom Ruen.

An object is said to be at solar conjunction when it makes its closest approach to the Sun in the sky.

The planets are typically lost in the Sun's glare and impossible to observe for a few weeks when they pass solar conjunction. Mercury can reappear within only a few days, since it moves around its orbit so quickly that it can pass from solar conjunction to maximum elongation in less than a month.

List of solar conjunctions

The table below lists the dates when objects are at solar conjunction in 2020, computed from NASA's DE405 planetary ephemeris. To show events in other years, use the control below.

Change year

Objects at solar conjunction in 2020

Date Object
Date Object
10 Jan 2020 15:01 UTCMercury at solar conjunctionMore information »
13 Jan 2020 15:18 UTCSaturn at solar conjunctionMore information »
13 Jan 2020 20:00 UTC134340 Pluto at solar conjunctionMore information »
14 Jan 2020 02:38 UTC1 Ceres at solar conjunctionMore information »
26 Feb 2020 01:38 UTCMercury at solar conjunctionMore information »
08 Mar 2020 12:24 UTCNeptune at solar conjunctionMore information »
13 Apr 2020 15:13 UTC136199 Eris at solar conjunctionMore information »
26 Apr 2020 09:02 UTCUranus at solar conjunctionMore information »
04 May 2020 21:28 UTCMercury at solar conjunctionMore information »
03 Jun 2020 17:37 UTCVenus at solar conjunctionMore information »
01 Jul 2020 02:45 UTCMercury at solar conjunctionMore information »
17 Aug 2020 14:53 UTCMercury at solar conjunctionMore information »
29 Sep 2020 08:36 UTC136472 Makemake at solar conjunctionMore information »
20 Oct 2020 14:39 UTC136108 Haumea at solar conjunctionMore information »
25 Oct 2020 18:16 UTCMercury at solar conjunctionMore information »
20 Dec 2020 03:06 UTCMercury at solar conjunctionMore information »

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