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 4°18' of each other. The Moon will be 26 days old.

From Fairfield , the pair will be visible in the dawn sky, rising at 02:11 (EST) and reaching an altitude of 44° above the eastern horizon before fading from view as dawn breaks at around 06:16.

The Moon will be at mag -11.2; and Mars will be at mag 1.5. Both objects will lie in the constellation Leo.

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 09h39m00s 10°57'N Leo -11.2 32'36"6
Mars 09h46m10s 14°54'N Leo 1.5 4"8

The coordinates above are given in J2000.0. The pair will be at an angular separation of 57° from the Sun, which is in Virgo at this time of year.

The sky on 13 Oct 2028

The sky on 13 October 2028
Sunrise
07:00
Sunset
18:14
Twilight ends
19:46
Twilight begins
05:28


Waning Crescent

18%

25 days old

Planets
Rise Culm. Set
Mercury 05:35 11:36 17:38
Venus 03:50 10:20 16:50
Moon 01:29 08:34 15:27
Mars 02:10 09:07 16:05
Jupiter 06:09 12:01 17:54
Saturn 19:07 01:52 08:38
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.

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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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