Close approach of Mars and Uranus

Dominic Ford, Editor
From the Appulses feed

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The planets Mars and Uranus will make a close approach, passing within a mere 31.7 arcminutes of each other.

From South El Monte , the pair will become visible at around 21:14 (PST), 43° above your western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting at 00:48.

Mars will be at mag 1.1; and Uranus will be at mag 5.5. Both objects will lie in the constellation Leo.

They 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.

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

A graph of the angular separation between Mars and Uranus 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
Mars 10h17m50s 11°57'N Leo 1.1 6"0
Uranus 10h17m00s 11°27'N Leo 5.5 3"8

The coordinates above are given in J2000.0. The pair will be at an angular separation of 76° from the Sun, which is in Taurus at this time of year.

The sky on 26 Dec 2025

The sky on 26 December 2025
Sunrise
06:53
Sunset
16:49
Twilight ends
18:18
Twilight begins
05:23


Waxing Crescent

42%

6 days old

Planets
Rise Culm. Set
Mercury 05:52 10:48 15:44
Venus 06:46 11:40 16:34
Moon 11:10 17:11 23:21
Mars 07:13 12:06 16:59
Jupiter 17:59 01:05 08:11
Saturn 11:23 17:16 23:08
All times shown in PST.

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.

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27 Feb 1964  –  Uranus at opposition
13 May 1964  –  Uranus 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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