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

Conjunction of Mars and Pluto

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

Mars and 134340 Pluto will share the same right ascension, with Mars passing 4°37' to the north of 134340 Pluto.

From Ashburn, the pair will be difficult to observe as they will appear no higher than 15° above the horizon. They will become visible around 17:35 (EDT) as the dusk sky fades, 15° above your south-western horizon. They will then sink towards the horizon, setting 2 hours and 30 minutes after the Sun at 19:21.

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Mars will be at mag 1.1, and 134340 Pluto at mag 15.1, both in the constellation Capricornus.

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 Mars and 134340 Pluto 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
Mars 20h52m20s -18°48' Capricornus 1.1 4"5
134340 Pluto 20h52m20s -23°26' Capricornus 15.1 0"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 35° from the Sun, which is in Sagittarius at this time of year.

The sky on 21 August 2019
Twilight ends
Twilight begins

20-day old moon
Waning Gibbous


20 days old

Rise Culm. Set
Mercury 05:19 12:21 19:24
Venus 06:36 13:21 20:07
Moon 23:20 05:18 11:45
Mars 06:46 13:28 20:10
Jupiter 15:16 20:02 00:52
Saturn 17:26 22:11 03:00
All times shown in EDT.


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

01 Aug 2029  –  134340 Pluto at opposition
03 Aug 2030  –  134340 Pluto at opposition
05 Aug 2031  –  134340 Pluto at opposition
06 Aug 2032  –  134340 Pluto 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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