Jupiter's 11.9-year orbit around the Sun will carry it to its furthest point to the Sun – its aphelion – at a distance of 5.46 AU.
In practice, however, Jupiter's orbit is very close to circular; its distance from the Sun only varies by about 10.2% 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 Jupiter
Jupiter'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 dawn sky, rising at 04:54 (PDT) – 1 hour and 13 minutes before the Sun – and reaching an altitude of 10° above the eastern horizon before fading from view as dawn breaks at around 05:51.
A chart of the path of Jupiter across the sky in 1957 can be found here, and a chart of its rising and setting times here.
The position of Jupiter at the moment it passes aphelion will be:
| Object | Right Ascension | Declination | Constellation | Magnitude | Angular Size |
| Jupiter | 13h04m50s | 5°42'S | Virgo | -1.7 | 30.1" |
The coordinates above are given in J2000.0.
The sky on 13 Aug 2025
| The sky on 13 August 2025 | ||||||||||||||||||||||||||||||||||
|
76% 20 days old |
All times shown in PDT.
|
|||||||||||||||||||||||||||||||||
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 May 1957 | – Jupiter ends retrograde motion |
| 15 Feb 1958 | – Jupiter enters retrograde motion |
| 16 Apr 1958 | – Jupiter at opposition |
| 18 Jun 1958 | – Jupiter ends retrograde motion |
Image credit
© NASA/Cassini