The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

Close approach of the Moon and Mars

Dominic Ford, Editor
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The sky at

The Moon and Mars will make a close approach, passing within 3°59' of each other. The Moon will be 3 days old.

From San Diego , the pair will become visible at around 17:20 (PDT), 21° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 2 hours and 50 minutes after the Sun at 19:31.

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 -10.4; and Mars will be at mag 1.1. Both objects will lie in the constellation Sagittarius.

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 19h48m10s 18°22'S Sagittarius -10.4 32'01"1
Mars 19h52m40s 22°13'S Sagittarius 1.1 4"7

The coordinates above are given in J2000.0. The pair will be at an angular separation of 39° from the Sun, which is in Ophiuchus at this time of year.

The sky on 8 Dec 2029

The sky on 8 December 2029
Sunrise
06:36
Sunset
16:41
Twilight ends
18:09
Twilight begins
05:08

3-day old moon
Waxing Crescent

15%

3 days old

Planets
Rise Culm. Set
Mercury 08:13 13:04 17:56
Venus 09:16 14:14 19:12
Moon 09:23 14:48 20:17
Mars 09:28 14:30 19:32
Jupiter 04:10 09:31 14:53
Saturn 15:02 21:45 04:28
All times shown in PST.

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

05 May 2029  –  Mars ends retrograde motion
28 Mar 2031  –  Mars enters retrograde motion
04 May 2031  –  Mars at opposition
11 May 2031  –  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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San Diego

Latitude:
Longitude:
Timezone:

32.72°N
117.16°W
PDT

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