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 1°41' of each other. The Moon will be 28 days old.

From Fairfield however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 12° above the horizon at dawn.

The Moon will be at mag -9.6; and Mars will be at mag 1.5. Both objects will lie in the constellation Taurus.

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 05h56m20s 25°33'N Taurus -9.6 32'01"0
Mars 05h55m40s 23°51'N Taurus 1.5 4"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 28° from the Sun, which is in Gemini at this time of year.

The sky on 19 Jul 2028

The sky on 19 July 2028
Sunrise
05:34
Sunset
20:20
Twilight ends
22:19
Twilight begins
03:34


Waning Crescent

3%

27 days old

Planets
Rise Culm. Set
Mercury 04:58 12:29 19:59
Venus 02:43 09:53 17:02
Moon 02:38 10:32 18:24
Mars 03:21 10:56 18:30
Jupiter 10:20 16:36 22:53
Saturn 00:47 07:34 14:22
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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