The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

Close approach of the Moon, Mars and Uranus

Dominic Ford, Editor
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The sky at

The Moon, Mars and Uranus will make a close approach, passing within 5°40' of each other. The Moon will be 6 days old.

From Seattle, the trio will become visible around 17:44 (PDT) as the dusk sky fades, 49° above your south-western horizon. They will then sink towards the horizon, setting at 23:20.

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 -11.3 in Pisces; Mars will be at mag 1.0 in Pisces; and Uranus will be at mag 5.8 in Aries.

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

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

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

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

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 01h48m50s +05°37' Pisces -11.3 30'11"9
Mars 01h40m40s +10°55' Pisces 1.0 5"8
Uranus 01h48m00s +10°35' Aries 5.8 3"4

The coordinates above are given in J2000.0. The trio will be at an angular separation of 65° from the Sun, which is in Capricornus at this time of year.

The sky on 10 February 2019
Twilight ends
Twilight begins

6-day old moon
Waxing Crescent


6 days old

Rise Culm. Set
Mercury 07:52 12:59 18:05
Venus 04:56 09:20 13:43
Moon 10:10 16:43 23:29
Mars 09:35 16:27 23:20
Jupiter 03:43 08:00 12:17
Saturn 05:40 09:58 14:17
All times shown in PST.


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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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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