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 1°41' of each other. The Moon will be 22 days old.

From Cambridge , the pair will be visible in the dawn sky, rising at 01:35 (EDT) – 3 hours and 57 minutes before the Sun – and reaching an altitude of 25° above the south-eastern horizon before fading from view as dawn breaks at around 04:56.

The Moon will be at mag -11.9; and Saturn will be at mag 0.4. Both objects will lie in the constellation Capricornus.

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 20h35m00s 17°17'S Capricornus -11.9 29'46"8
Saturn 20h37m20s 18°52'S Capricornus 0.4 17"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 98° from the Sun, which is in Aries at this time of year.

The sky on 1 Sep 2024

The sky on 1 September 2024
Sunrise
06:07
Sunset
19:17
Twilight ends
20:57
Twilight begins
04:27


Waning Crescent

1%

28 days old

Planets
Rise Culm. Set
Mercury 04:42 11:35 18:28
Venus 08:11 14:13 20:14
Moon 04:22 11:47 18:59
Mars 00:13 07:49 15:26
Jupiter 23:40 07:11 14:42
Saturn 19:37 01:13 06:49
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.

Related news

23 Sep 1990  –  Saturn ends retrograde motion
16 May 1991  –  Saturn enters retrograde motion
26 Jul 1991  –  Saturn at opposition
04 Oct 1991  –  Saturn ends retrograde motion

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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