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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 0°07' of each other. The Moon will be 5 days old.

From Fairfield, the pair will become visible around 19:51 (EDT) as the dusk sky fades, 49° above your western horizon. They will then sink towards the horizon, setting at 00:35.

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 -11.0; and Mars will be at mag 1.5. Both objects will lie in the constellation Taurus.

They will be close enough to fit within the field of view of a telescope, but will also 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 05h42m50s +24°43' Taurus -11.0 29'39"8
Mars 05h42m40s +24°50' Taurus 1.5 4"9

The coordinates above are given in J2000.0. The pair will be at an angular separation of 58° from the Sun, which is in Pisces at this time of year.

The sky on 17 April 2021
Sunrise
06:10
Sunset
19:34
Twilight ends
21:14
Twilight begins
04:30

5-day old moon
Waxing Crescent

23%

5 days old

Planets
Rise Culm. Set
Mercury 06:12 12:47 19:23
Venus 06:30 13:15 20:01
Moon 09:31 17:11 00:52
Mars 09:14 16:53 00:33
Jupiter 03:49 09:04 14:19
Saturn 03:11 08:10 13:08
All times shown in EDT.

Source

The circumstances of this event were computed using the DE405 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

13 Oct 2020  –  Mars at opposition
12 Jul 2021  –  Mars at aphelion
20 Sep 2021  –  Mars at apogee
08 Oct 2021  –  Mars at solar conjunction

Image credit

None available.

Fairfield

Latitude:
Longitude:
Timezone:

41.14°N
73.26°W
EDT

Color scheme