Close approach of the Moon and Mars

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Mars will make a close approach, passing within 3°47' of each other. The Moon will be 26 days old.

From Fairfield , the pair will be difficult to observe as they will appear no higher than 13° above the horizon. They will be visible in the dawn sky, rising at 04:50 (EDT) – 2 hours and 21 minutes before the Sun – and reaching an altitude of 13° above the south-eastern horizon before fading from view as dawn breaks at around 06:25.

The Moon will be at mag -10.2; and Mars will be at mag 1.4. Both objects will lie in the constellation Ophiuchus.

They 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.

At around the same time, the pair will also share the same right ascension – called a conjunction.

A graph of the angular separation between the Moon and Mars around the time of closest approach is available here.

The positions of the pair at the moment of closest approach will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 17h42m30s 27°26'S Ophiuchus -10.2 30'12"2
Mars 17h41m50s 23°39'S Ophiuchus 1.4 4"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 37° from the Sun, which is in Capricornus at this time of year.

The sky on 1 Sep 2024

The sky on 1 September 2024
Sunrise
06:17
Sunset
19:25
Twilight ends
21:02
Twilight begins
04:39


Waning Crescent

1%

28 days old

Planets
Rise Culm. Set
Mercury 04:53 11:44 18:35
Venus 08:20 14:21 20:23
Moon 04:34 11:56 19:05
Mars 00:26 07:58 15:30
Jupiter 23:52 07:19 14:47
Saturn 19:45 01:22 06:58
All times shown in EDT.

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.

Related news

28 Oct 1988  –  Mars ends retrograde motion
20 Oct 1990  –  Mars enters retrograde motion
19 Nov 1990  –  Mars at perigee
27 Nov 1990  –  Mars 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.

Share