Conjunction of Mars and Neptune

Dominic Ford, Editor
From the Conjunctions feed


Mars and Neptune will share the same right ascension, with Mars passing 51' to the south of Neptune.

From South El Monte , the pair will become visible at around 21:12 (PDT), 29° above your western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 3 hours and 39 minutes after the Sun at 23:40.

Mars will be at mag 1.1, and Neptune at mag 8.0, both in the constellation Virgo.

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

A graph of the angular separation between Mars and Neptune 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
Mars 11h48m50s 1°42'N Virgo 1.1 5"8
Neptune 11h48m50s 2°34'N Virgo 8.0 2"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 70° from the Sun, which is in Gemini at this time of year.

The sky on 24 Jun 2026

The sky on 24 June 2026
Sunrise
05:39
Sunset
20:06
Twilight ends
21:51
Twilight begins
03:54


Waxing Gibbous

83%

10 days old

Planets
Rise Culm. Set
Mercury 07:26 14:26 21:27
Venus 08:46 15:42 22:39
Moon 15:51 21:04 02:11
Mars 03:21 10:18 17:15
Jupiter 07:39 14:42 21:45
Saturn 01:23 07:34 13:45
All times shown in PDT.

Source

The circumstances of this event were computed using the DE440 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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