Conjunction of Saturn and Mars

Dominic Ford, Editor
From the Conjunctions feed


Saturn and Mars will share the same right ascension, with Saturn passing 2°02' to the south of Mars.

From South El Monte , the pair will become visible at around 18:31 (PDT), 18° above your western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 2 hours and 9 minutes after the Sun at 20:02.

Saturn will be at mag 0.7 in the constellation Cetus, and Mars at mag 1.3 in the neighbouring constellation of Pisces.

The pair 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.

A graph of the angular separation between Saturn and Mars 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
Saturn 00h47m10s 2°37'N Cetus 0.7 16"1
Mars 00h47m10s 4°40'N Pisces 1.3 4"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 27° from the Sun, which is in Aquarius at this time of year.

The sky on 9 Sep 2025

The sky on 9 September 2025
Sunrise
06:28
Sunset
19:06
Twilight ends
20:31
Twilight begins
05:03


Waning Gibbous

90%

17 days old

Planets
Rise Culm. Set
Mercury 06:13 12:38 19:02
Venus 04:10 10:57 17:45
Moon 19:48 02:05 08:32
Mars 09:13 14:54 20:34
Jupiter 01:52 08:58 16:05
Saturn 19:42 01:37 07:33
All times shown in PDT.

Source

The circumstances of this event were computed using the DE430 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.

Related news

09 Dec 1967  –  Saturn ends retrograde motion
06 Aug 1968  –  Saturn enters retrograde motion
15 Oct 1968  –  Saturn at opposition
21 Dec 1968  –  Saturn ends retrograde motion

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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