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Conjunction of the Moon and Mars

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

The Moon and Mars will share the same right ascension, with the Moon passing 4°19' to the south of Mars. The Moon will be 3 days old.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Seattle, the pair will become visible around 18:13 (PST) as the dusk sky fades, 33° above your south-western horizon. They will then sink towards the horizon, setting 3 hours and 51 minutes after the Sun at 21:43.

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 -10.5, and Mars at mag 1.3, both in the constellation Pisces.

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 the Moon and Mars 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
The Moon 01h28m00s +04°56' Pisces -10.5 32'17"0
Mars 01h28m00s +09°16' Pisces 1.3 4"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 41° from the Sun, which is in Aquarius at this time of year.

The sky on 01 March 2017
Sunrise
06:49
Sunset
17:54
Twilight ends
19:36
Twilight begins
05:07

3-day old moon
Waxing Crescent

12%

3 days old

Planets
Rise Culm. Set
Mercury 06:53 12:08 17:22
Venus 07:14 14:07 21:00
Moon 08:41 15:08 21:34
Mars 08:14 14:59 21:44
Jupiter 21:20 02:56 08:28
Saturn 02:58 07:17 11:35
All times shown in PST.

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.

Related news

29 Oct 2016  –  Mars at perihelion
26 Jul 2017  –  Mars at solar conjunction
05 Aug 2017  –  Mars at apogee
07 Oct 2017  –  Mars at aphelion

Image credit

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Seattle

Latitude:
Longitude:
Timezone:

47.61°N
122.33°W
PST

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