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Close approach of the Moon and Uranus

Dominic Ford, Editor
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The sky at

The Moon and Uranus will make a close approach, passing within 1°25' of each other. The Moon will be 20 days old.

From Washington, the pair will be visible in the morning sky, becoming accessible around 23:43, when they rise to an altitude of 7° above your eastern horizon. They will then reach its highest point in the sky at 05:54, 68° above your southern horizon. They will be lost to dawn twilight around 06:42, 66° above your south-western horizon.

Begin typing the name of a town near to you, and then select the town from the list of options which appear below.

The Moon will be at mag -12.1, and Uranus at mag 5.7, both in the constellation Aries.

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 the Moon and Uranus around the time of closest approach is available here.

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

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 02h50m40s +14°27' Aries -12.1 29'41"1
Uranus 02h48m30s +15°46' Aries 5.7 3"6

The coordinates above are given in J2000.0. The pair will be at an angular separation of 110° from the Sun, which is in Leo at this time of year.

The sky on 28 August 2021
Twilight ends
Twilight begins

20-day old moon
Waning Gibbous


20 days old

Rise Culm. Set
Mercury 08:51 14:56 21:01
Venus 10:13 15:58 21:44
Moon 23:41 06:00 12:49
Mars 08:05 14:24 20:43
Jupiter 19:37 01:01 06:20
Saturn 18:43 23:45 04:52
All times shown in MDT.


The circumstances of this event were computed using the DE405 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

31 Oct 2020  –  Uranus at opposition
04 Nov 2021  –  Uranus at opposition
09 Nov 2022  –  Uranus at opposition
13 Nov 2023  –  Uranus at opposition

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