© NASA/Cassini

Jupiter at solar conjunction

Dominic Ford, Editor
From the Outer Planets feed

Objects: Jupiter
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The sky at

Jupiter will pass close to the Sun in the sky as its orbit carries it around the far side of the solar system from the Earth.

At closest approach, Jupiter will appear at a separation of only 0°55' from the Sun, making it totally unobservable for several weeks while it is lost in the Sun's glare.

At around the same time, Jupiter will also be at its most distant from the Earth – receding to a distance of 6.41 AU – since the two planets will lie on opposite sides of the solar system.

If Jupiter could be observed at this time, it would appear at its smallest and faintest on account of its large distance. It would measure 30.1 arcsec in diameter.

Jupiter
Jupiter at opposition
Jupiter
Jupiter at solar conjunction

A comparison of the size of Jupiter as seen at opposition and at solar conjunction.

Over following weeks and months, Jupiter will re-emerge to the west of the Sun, gradually becoming visible for ever-longer periods in the pre-dawn sky. After around six months, it will reach opposition, when it will be visible for virtually the whole night. A chart of the path of Jupiter across the sky in 2027 can be found here, and a chart of its rising and setting times here.

The position of Jupiter at the moment it passes solar conjunction will be:

Object Right Ascension Declination Constellation Angular Size
Jupiter 10h37m20s 9°40'N Leo 30.1"
Sun 10h35m 8°49'N Leo 31'41"

The coordinates above are given in J2000.0.

The sky on 31 Aug 2027

The sky on 31 August 2027
Sunrise
06:05
Sunset
19:20
Twilight ends
21:00
Twilight begins
04:24

29-day old moon
Waxing Crescent

0%

29 days old

Planets
Rise Culm. Set
Mercury 07:37 13:48 20:00
Venus 06:32 13:05 19:37
Moon 05:56 12:37 19:03
Mars 10:30 15:51 21:13
Jupiter 06:04 12:43 19:22
Saturn 21:19 03:51 10:24
All times shown in EDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

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

12 Apr 2027  –  Jupiter ends retrograde motion
12 Jan 2028  –  Jupiter enters retrograde motion
12 Mar 2028  –  Jupiter at opposition
13 May 2028  –  Jupiter ends retrograde motion

Image credit

© NASA/Cassini

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42.38°N
71.11°W
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