Jupiter at solar conjunction

Dominic Ford, Editor
From the Outer Planets feed


Objects: Jupiter

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°58' 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 6.42 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 30.0 arcsec in diameter.

Jupiter at opposition
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 2029 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 14h21m30s 13°03'S Virgo 30.0"
Sun 14h20m 13°59'S Virgo 32'13"

The coordinates above are given in J2000.0.

The sky on 30 Oct 2029

The sky on 30 October 2029
Sunrise
07:19
Sunset
17:50
Twilight ends
19:23
Twilight begins
05:45


Waning Crescent

39%

23 days old

Planets
Rise Culm. Set
Mercury 07:19 12:34 17:49
Venus 11:30 15:48 20:06
Moon 23:39 06:48 13:48
Mars 11:30 15:59 20:28
Jupiter 07:20 12:37 17:53
Saturn 18:38 01:39 08:40
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

13 Jun 2029  –  Jupiter ends retrograde motion
13 Mar 2030  –  Jupiter enters retrograde motion
13 May 2030  –  Jupiter at opposition
14 Jul 2030  –  Jupiter ends retrograde motion

Image credit

© NASA/Cassini

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