Conjunction of Saturn and Uranus

Dominic Ford, Editor
From the Conjunctions feed


Saturn and Uranus will share the same right ascension, with Saturn passing 1°20' to the north of Uranus.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Cambridge , the pair will be visible between 22:57 and 01:45. They will become accessible at around 22:57, when they rise to an altitude of 21° above your southern horizon. They will reach their highest point in the sky at 00:21, 23° above your southern horizon. They will become inaccessible at around 01:45 when they sink below 21° above your southern horizon.

Saturn will be at mag 0.0, and Uranus at mag 5.6, both in the constellation Sagittarius.

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

A graph of the angular separation between Saturn and Uranus 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 17h55m20s 22°18'S Sagittarius 0.0 18"3
Uranus 17h55m20s 23°38'S Sagittarius 5.6 3"8

The coordinates above are given in J2000.0. The pair will be at an angular separation of 173° from the Sun, which is in Gemini at this time of year.

The sky on 12 May 2025

The sky on 12 May 2025
Sunrise
05:23
Sunset
19:55
Twilight ends
21:52
Twilight begins
03:27


Waning Gibbous

99%

15 days old

Planets
Rise Culm. Set
Mercury 04:46 11:29 18:11
Venus 03:38 09:50 16:03
Moon 19:22 00:10 04:51
Mars 10:57 18:15 01:33
Jupiter 07:17 14:52 22:27
Saturn 03:26 09:20 15:14
All times shown in EDT.

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

20 Jun 1988  –  Uranus at opposition
05 Sep 1988  –  Uranus ends retrograde motion
09 Apr 1989  –  Uranus enters retrograde motion
24 Jun 1989  –  Uranus at opposition

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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