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 2°34' of each other. The Moon will be 7 days old.

From Columbus , the pair will become visible at around 19:11 (EST), 28° above your southern horizon, as dusk fades to darkness. They will then sink towards the horizon, setting at 23:57.

The Moon will be at mag -11.8; and Saturn will be at mag 0.3. Both objects will lie in the constellation Sagittarius.

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 19h51m20s 23°54'S Sagittarius -11.8 31'07"8
Saturn 19h50m10s 21°21'S Sagittarius 0.3 16"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 85° from the Sun, which is in Virgo at this time of year.

The sky on 23 Oct 2020

The sky on 23 October 2020
Sunrise
07:49
Sunset
18:40
Twilight ends
20:11
Twilight begins
06:18


Waxing Gibbous

51%

7 days old

Planets
Rise Culm. Set
Mercury 08:18 13:30 18:42
Venus 04:48 11:03 17:18
Moon 15:15 19:57 00:43
Mars 18:14 00:33 06:52
Jupiter 14:03 18:46 23:28
Saturn 14:24 19:11 23:57
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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10 Oct 2021  –  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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