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Close approach of the Moon and Saturn

Dominic Ford, Editor
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The sky at

The Moon and Saturn will make a close approach, passing within 2°46' of each other. The Moon will be 7 days old.

From Cambridge, the pair will become visible around 20:06 (EDT) as the dusk sky fades, 25° above your south-western horizon. They will then sink towards the horizon, setting 3 hours and 7 minutes after the Sun at 22:53.

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 -11.6; and Saturn will be at mag 0.5. Both objects will lie in the constellation Virgo.

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 Saturn 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 14h13m40s -13°55' Virgo -11.6 31'31"5
Saturn 14h16m30s -11°13' Virgo 0.5 16"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 75° from the Sun, which is in Leo at this time of year.

The sky on 13 August 2013
Sunrise
05:50
Sunset
19:49
Twilight ends
21:37
Twilight begins
04:01

7-day old moon
Waxing Crescent

37%

7 days old

Planets
Rise Culm. Set
Mercury 04:47 12:04 19:21
Venus 08:53 15:04 21:15
Moon 12:59 18:02 23:06
Mars 03:12 10:45 18:19
Jupiter 02:27 10:01 17:36
Saturn 12:10 17:32 22:53
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

28 Apr 2013  –  Saturn at opposition
06 Nov 2013  –  Saturn at solar conjunction
10 May 2014  –  Saturn at opposition
18 Nov 2014  –  Saturn at solar conjunction

Image credit

None available.

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

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