Saturn at aphelion

Dominic Ford, Editor
From the Outer Planets feed


Objects: Saturn

Saturn's 29.5-year orbit around the Sun will carry it to its furthest point to the Sun – its aphelion – at a distance of 10.07 AU.

In practice, however, Saturn's orbit is very close to circular; its distance from the Sun only varies by about 11.4% between perihelion and aphelion. This means that the difference in the amount of heat and light it receives from the Sun between aphelion and perihelion is extremely small.

Finding Saturn

Saturn's distance from the Sun doesn't affect its appearance. From South El Monte, at the moment of aphelion it will be visible in the morning sky, becoming accessible around 22:22, when it reaches an altitude of 9° above your south-eastern horizon. It will then reach its highest point in the sky at 02:20, 33° above your southern horizon. It will be lost to dawn twilight around 05:12, 20° above your south-western horizon.

A chart of the path of Saturn across the sky in 1959 can be found here, and a chart of its rising and setting times here.

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

Object Right Ascension Declination Constellation Magnitude Angular Size
Saturn 18h24m40s 22°22'S Sagittarius 0.0 18.2"

The coordinates above are given in J2000.0.

The sky on 20 May 2026

The sky on 20 May 2026
Sunrise
05:44
Sunset
19:50
Twilight ends
21:29
Twilight begins
04:05


Waxing Crescent

24%

4 days old

Planets
Rise Culm. Set
Mercury 06:09 13:17 20:26
Venus 07:48 15:05 22:22
Moon 09:35 17:00 00:16
Mars 04:21 10:55 17:28
Jupiter 09:24 16:31 23:38
Saturn 03:33 09:42 15:51
All times shown in PDT.

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

16 Apr 1959  –  Saturn enters retrograde motion
25 Jun 1959  –  Saturn at opposition
04 Sep 1959  –  Saturn ends retrograde motion
27 Apr 1960  –  Saturn enters retrograde motion

Image credit

© NASA/Cassini

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