© NASA/Cassini

Saturn at solar conjunction

Dominic Ford, Editor
From the Outer Planets feed

Objects: Saturn
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The sky at

Saturn 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, Saturn will appear at a separation of only 1°50' from the Sun, making it totally unobservable for several weeks while it is lost in the Sun's glare.

At around the same time, Saturn will also be at its most distant from the Earth – receding to a distance of 10.11 AU – since the two planets will lie on opposite sides of the solar system.

If Saturn could be observed at this time, it would appear at its smallest and faintest on account of its large distance. It would measure 16.4 arcsec in diameter.

Saturn
Saturn at opposition
Saturn
Saturn at solar conjunction

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

Over following weeks and months, Saturn 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 Saturn across the sky in 2030 can be found here, and a chart of its rising and setting times here.

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

Object Right Ascension Declination Constellation Angular Size
Saturn 03h44m20s 17°53'N Taurus 16.4"
Sun 03h42m 19°41'N Taurus 31'37"

The coordinates above are given in J2000.0.

The sky on 19 May 2030

The sky on 19 May 2030
Sunrise
05:16
Sunset
20:02
Twilight ends
22:03
Twilight begins
03:15

17-day old moon
Waning Gibbous

92%

17 days old

Planets
Rise Culm. Set
Mercury 04:25 11:02 17:40
Venus 03:45 10:10 16:35
Moon 21:52 02:27 07:04
Mars 05:22 12:44 20:07
Jupiter 19:16 00:14 05:13
Saturn 05:27 12:39 19:51
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

18 Jan 2030  –  Saturn ends retrograde motion
20 Sep 2030  –  Saturn enters retrograde motion
27 Nov 2030  –  Saturn at opposition
01 Feb 2031  –  Saturn ends retrograde motion

Image credit

© NASA/Cassini

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42.38°N
71.11°W
EST

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