Close approach of Saturn and Mars

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The planets Saturn and Mars will make a close approach, passing within 1°20' of each other.

From South El Monte , the pair will become visible at around 17:36 (PDT), 38° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting at 21:06.

Saturn will be at mag 1.0; and Mars will be at mag 1.0. Both objects will lie in the constellation Aquarius.

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

At around the same time, the pair will also share the same right ascension – called a conjunction.

A graph of the angular separation between Saturn and Mars around the time of closest approach is available here.

The positions of the pair at the moment of closest approach will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Saturn 23h18m10s 6°40'S Aquarius 1.0 16"3
Mars 23h16m00s 5°27'S Aquarius 1.0 5"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 52° from the Sun, which is in Sagittarius at this time of year.

The sky on 21 Jul 2026

The sky on 21 July 2026
Sunrise
05:53
Sunset
20:00
Twilight ends
21:40
Twilight begins
04:13


Waxing Gibbous

60%

8 days old

Planets
Rise Culm. Set
Mercury 05:07 12:01 18:55
Venus 09:28 15:51 22:14
Moon 13:43 19:00 00:11
Mars 02:43 09:52 17:00
Jupiter 06:22 13:20 20:19
Saturn 23:39 05:51 12:03
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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