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 2025, computed from NASA's DE430 planetary ephemeris. To show events in other years, use the control below.

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Objects at solar conjunction in 2025

Date Object Full description
of event
Date Object Full description
of event
21 Jan 2025 07:19 EST134340 Pluto at solar conjunctionMore information »
09 Feb 2025 07:19 ESTMercury at solar conjunctionMore information »
14 Feb 2025 16:20 EST1 Ceres at solar conjunctionMore information »
12 Mar 2025 06:19 EDTSaturn at solar conjunctionMore information »
19 Mar 2025 19:16 EDTNeptune at solar conjunctionMore information »
22 Mar 2025 21:02 EDTVenus at solar conjunctionMore information »
24 Mar 2025 15:43 EDTMercury at solar conjunctionMore information »
14 Apr 2025 14:03 EDT136199 Eris at solar conjunctionMore information »
17 May 2025 19:23 EDTUranus at solar conjunctionMore information »
30 May 2025 00:19 EDTMercury at solar conjunctionMore information »
24 Jun 2025 11:05 EDTJupiter at solar conjunctionMore information »
31 Jul 2025 19:36 EDTMercury at solar conjunctionMore information »
13 Sep 2025 07:00 EDTMercury at solar conjunctionMore information »
04 Oct 2025 01:21 EDT136472 Makemake at solar conjunctionMore information »
25 Oct 2025 16:19 EDT136108 Haumea at solar conjunctionMore information »
20 Nov 2025 04:19 ESTMercury at solar conjunctionMore information »

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