The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

Conjunction of Jupiter and Saturn

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

Jupiter and Saturn will share the same right ascension, with Jupiter passing 0°13' to the south of Saturn.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Fairfield, the pair will be visible in the dawn sky, rising at 05:02 (EDT) – 1 hour and 38 minutes before the Sun – and reaching an altitude of 12° above the south-eastern horizon before fading from view as dawn breaks around 06:24.

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Jupiter will be at mag -1.9, and Saturn at mag 0.5, both in the constellation Sagittarius.

The pair will be close enough to fit within the field of view of a telescope, but will also be visible to the naked eye or through a pair of binoculars.

A graph of the angular separation between Jupiter and Saturn around the time of closest approach is available here.

The positions of the two objects at the moment of conjunction will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
Jupiter 19h50m40s -21°11' Sagittarius -1.9 32"4
Saturn 19h50m40s -20°57' Sagittarius 0.5 15"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 34° from the Sun, which is in Aquarius at this time of year.

The sky on 10 May 2021
Sunrise
05:38
Sunset
20:02
Twilight ends
21:50
Twilight begins
03:46

28-day old moon
Waning Crescent

0%

28 days old

Planets
Rise Culm. Set
Mercury 06:35 14:12 21:49
Venus 06:18 13:38 20:58
Moon 05:17 12:06 19:03
Mars 08:46 16:23 00:00
Jupiter 02:29 07:47 13:06
Saturn 01:44 06:43 11:43
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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13 Aug 1963  –  Saturn at opposition

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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Fairfield

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41.14°N
73.26°W
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