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 10.04 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 evening sky, becoming accessible around 19:45 (PDT), 33° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:45, 33° above your southern horizon. It will continue to be observable until around 23:41, when it sinks below 10° above your south-western horizon.

A chart of the path of Saturn across the sky in 1988 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 17h43m00s 22°25'S Ophiuchus 0.2 17.1"

The coordinates above are given in J2000.0.

The sky on 26 Aug 2025

The sky on 26 August 2025
Sunrise
06:19
Sunset
19:25
Twilight ends
20:53
Twilight begins
04:50


Waxing Crescent

13%

3 days old

Planets
Rise Culm. Set
Mercury 05:03 11:51 18:40
Venus 03:44 10:43 17:43
Moon 09:40 15:25 21:03
Mars 09:25 15:15 21:06
Jupiter 02:35 09:43 16:50
Saturn 20:39 02:36 08:33
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

30 Aug 1988  –  Saturn ends retrograde motion
22 Apr 1989  –  Saturn enters retrograde motion
02 Jul 1989  –  Saturn at opposition
11 Sep 1989  –  Saturn ends retrograde motion

Image credit

© NASA/Cassini

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