Close approach of Jupiter and Saturn

Dominic Ford, Editor
From the Appulses feed

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The planets Jupiter and Saturn will make a close approach, passing within a mere 39.4 arcminutes of each other.

From Jacksonville , the pair will be visible in the dawn sky, rising at 01:37 (EST) and reaching an altitude of 60° above the eastern horizon before fading from view as dawn breaks at around 06:26.

Jupiter will be at mag -2.2; and Saturn will be at mag -0.1. Both objects will lie in the constellation Gemini.

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 Jupiter 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
Jupiter 06h14m10s 23°00'N Gemini -2.2 35"7
Saturn 06h14m10s 22°21'N Gemini -0.1 17"7

The coordinates above are given in J2000.0. The pair will be at an angular separation of 68° from the Sun, which is in Leo at this time of year.

The sky on 4 Dec 2024

The sky on 4 December 2024
Sunrise
07:05
Sunset
17:25
Twilight ends
18:50
Twilight begins
05:40


Waxing Crescent

16%

3 days old

Planets
Rise Culm. Set
Mercury 07:21 12:30 17:39
Venus 10:22 15:26 20:31
Moon 10:23 15:22 20:25
Mars 21:11 04:07 11:03
Jupiter 17:35 00:33 07:31
Saturn 12:46 18:28 00:10
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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