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 Mercury

Fri, 01 Sep 2017 at19:57 EDT(24 days ago)
23:57 UTC

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

Mars and Mercury will share the same right ascension, with Mars passing 4°05' to the north of Mercury.

From Ashburn (click to change) however, the pair will not be readily observable since they will be very close to the Sun, at a separation of only 11° from it.

Mars will be at mag 1.8, and Mercury at mag 2.8, both in the constellation Leo.

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

A graph of the angular separation between Mars and Mercury 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 10h00m40s +13°23' Leo 1.8 3"5
Mercury 10h00m40s +09°18' Leo 2.8 9"7

The coordinates above are given in J2000.0. The pair will be at an angular separation of 11° from the Sun, which is in Leo at this time of year.

The sky on 01 September 2017
Sunrise 06:37
Sunset 19:39
Twilight ends
21:13
Twilight begins
05:04

11-day old moon
Age of Moon
11 days

All times shown in EDT.
Rise Culm. Set
Mercury 05:54 12:27 19:00
Venus 03:59 11:05 18:11
Moon 16:52 21:50 01:59
Mars 05:37 12:25 19:13
Jupiter 10:09 15:47 21:26
Saturn 14:58 19:45 00:36

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

Source

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.

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27 Jul 2017, 21:17 EDTMars at solar conjunction
27 Jul 2018, 01:07 EDTMars at opposition
02 Sep 2019, 07:01 EDTMars at solar conjunction
13 Oct 2020, 19:19 EDTMars 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.

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EDT

Color scheme