Conjunction of the Moon and Mars

Dominic Ford, Editor
From the Conjunctions feed


The Moon and Mars will share the same right ascension, with the Moon passing 1°24' to the north of Mars. The Moon will be 24 days old.

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

From Cambridge , the pair will be visible in the dawn sky, rising at 01:48 (EST) and reaching an altitude of 29° above the southern horizon before fading from view as dawn breaks at around 06:18.

The Moon will be at mag -11.5, and Mars at mag 1.1, both in the constellation Libra.

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 15h21m20s 16°01'S Libra -11.5 30'32"2
Mars 15h21m20s 17°26'S Libra 1.1 5"7

The coordinates above are given in J2000.0. The pair will be at an angular separation of 72° from the Sun, which is in Capricornus at this time of year.

The sky on 25 Jan 2033

The sky on 25 January 2033
Sunrise
07:01
Sunset
16:48
Twilight ends
18:26
Twilight begins
05:24


Waning Crescent

30%

24 days old

Planets
Rise Culm. Set
Mercury 07:39 12:31 17:24
Venus 08:54 14:49 20:44
Moon 01:54 06:58 11:58
Mars 01:50 06:46 11:43
Jupiter 07:26 12:21 17:16
Saturn 13:52 21:25 04:57
All times shown in EST.

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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13 Jun 2031  –  Mars ends retrograde motion
26 May 2033  –  Mars enters retrograde motion
27 Jun 2033  –  Mars at opposition
05 Jul 2033  –  Mars at perigee

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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