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Close approach of the Moon and Jupiter

Dominic Ford, Editor
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The sky at

The Moon and Jupiter will make a close approach, passing within 0°37' of each other. The Moon will be 22 days old.

From Cambridge, the pair will be visible in the dawn sky, rising at 22:56 (EDT) and reaching an altitude of 68° above the southern horizon before fading from view as dawn breaks around 05:59.

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The Moon will be at mag -11.8; and Jupiter will be at mag -2.4. Both objects will lie in the constellation Taurus.

They will be a little too widely separated to fit comfortably 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 Jupiter 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 04h55m40s +21°11' Taurus -11.8 29'36"5
Jupiter 04h55m40s +21°48' Taurus -2.4 39"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 90° from the Sun, which is in Leo at this time of year.

The sky on 08 September 2012
Sunrise
06:17
Sunset
19:06
Twilight ends
20:44
Twilight begins
04:40

22-day old moon
Waning Gibbous

50%

22 days old

Planets
Rise Culm. Set
Mercury 06:07 12:38 19:10
Venus 02:34 09:48 17:02
Moon 23:51 06:28 13:54
Mars 10:58 16:03 21:08
Jupiter 22:56 06:29 13:58
Saturn 09:42 15:15 20:48
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 May 2012  –  Jupiter at solar conjunction
02 Dec 2012  –  Jupiter at opposition
19 Jun 2013  –  Jupiter at solar conjunction
05 Jan 2014  –  Jupiter at opposition

Image credit

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Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

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