Mars and 134340 Pluto will share the same right ascension, with Mars passing 3°19' to the south of 134340 Pluto.
From Cambridge , the pair will become visible at around 19:03 (EST), 24° above your southern horizon, as dusk fades to darkness. They will then sink towards the horizon, setting at 22:36.
Mars will be at mag 0.2, and 134340 Pluto at mag 15.0, 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 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 | 19h04m00s | 24°46'S | Sagittarius | 0.2 | 7"9 |
| 134340 Pluto | 19h04m00s | 21°27'S | Sagittarius | 15.0 | 0"0 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 78° from the Sun, which is in Virgo at this time of year.
The sky on 18 Oct 2016
| The sky on 18 October 2016 | ||||||||||||||||||||||||||||||||||
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84% 17 days old |
All times shown in EDT.
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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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| 07 Jul 2016 | – 134340 Pluto at opposition |
| 10 Jul 2017 | – 134340 Pluto at opposition |
| 12 Jul 2018 | – 134340 Pluto at opposition |
| 14 Jul 2019 | – 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.