Close approach of the Moon and Saturn

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Saturn will make a close approach, passing within a mere 44.9 arcminutes of each other. From some parts of the world, the Moon will pass in front of Saturn, creating a lunar occultation. The Moon will be 24 days old.

From Fairfield , the pair will be visible in the dawn sky, rising at 01:22 (EST) and reaching an altitude of 43° above the eastern horizon before fading from view as dawn breaks at around 05:27.

The Moon will be at mag -11.0; and Saturn will be at mag -0.1. 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 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 05h17m20s 20°50'N Taurus -11.0 29'35"0
Saturn 05h17m20s 21°35'N Taurus -0.1 17"4

The coordinates above are given in J2000.0. The pair will be at an angular separation of 59° from the Sun, which is in Leo at this time of year.

The sky on 12 Aug 2031

The sky on 12 August 2031
Sunrise
05:56
Sunset
19:56
Twilight ends
21:42
Twilight begins
04:09


Waning Crescent

20%

24 days old

Planets
Rise Culm. Set
Mercury 06:05 12:46 19:28
Venus 06:04 12:37 19:10
Moon 01:07 08:34 16:01
Mars 13:59 18:46 23:34
Jupiter 16:01 20:39 01:17
Saturn 01:22 08:47 16:11
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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