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.
Objects at solar conjunction in 2025
Date | Object | Full description of event |
Date | Object | Full description of event |
21 Jan 2025 07:19 EST | 134340 Pluto at solar conjunction | More information » |
09 Feb 2025 07:19 EST | Mercury at solar conjunction | More information » |
14 Feb 2025 16:20 EST | 1 Ceres at solar conjunction | More information » |
12 Mar 2025 06:19 EDT | Saturn at solar conjunction | More information » |
19 Mar 2025 19:16 EDT | Neptune at solar conjunction | More information » |
22 Mar 2025 21:02 EDT | Venus at solar conjunction | More information » |
24 Mar 2025 15:43 EDT | Mercury at solar conjunction | More information » |
14 Apr 2025 14:03 EDT | 136199 Eris at solar conjunction | More information » |
17 May 2025 19:23 EDT | Uranus at solar conjunction | More information » |
30 May 2025 00:19 EDT | Mercury at solar conjunction | More information » |
24 Jun 2025 11:05 EDT | Jupiter at solar conjunction | More information » |
31 Jul 2025 19:36 EDT | Mercury at solar conjunction | More information » |
13 Sep 2025 07:00 EDT | Mercury at solar conjunction | More information » |
04 Oct 2025 01:21 EDT | 136472 Makemake at solar conjunction | More information » |
25 Oct 2025 16:19 EDT | 136108 Haumea at solar conjunction | More information » |
20 Nov 2025 04:19 EST | Mercury at solar conjunction | More information » |