Close approach of the Moon and Jupiter

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Jupiter will make a close approach, passing within 1°36' of each other. The Moon will be 5 days old.

From Fairfield , the pair will become visible at around 17:18 (EST), 45° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting at 21:58.

The Moon will be at mag -11.2; and Jupiter will be at mag -2.2. Both objects will lie in the constellation Pisces.

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 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 00h21m50s 0°40'S Pisces -11.2 32'05"3
Jupiter 00h19m00s 0°45'N Pisces -2.2 35"8

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

The sky on 25 Jan 2023

The sky on 25 January 2023
Sunrise
07:08
Sunset
16:59
Twilight ends
18:36
Twilight begins
05:32


Waxing Crescent

29%

4 days old

Planets
Rise Culm. Set
Mercury 05:36 10:20 15:04
Venus 08:22 13:36 18:50
Moon 09:49 15:40 21:44
Mars 12:21 19:59 03:36
Jupiter 09:46 15:52 21:57
Saturn 08:12 13:23 18:35
All times shown in EST.

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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