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.
Jupiter's distance from the Sun doesn't affect its appearance. From Seattle, at the moment of perihelion it will become visible around 17:13 (PDT), 41° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 22:29.
The exact position of Jupiter at the moment it passes perihelion will be:
|Object||Right Ascension||Declination||Constellation||Magnitude||Angular Size|
The coordinates above are given in J2000.0.
|The sky on 21 January 2023|
29 days old
All times shown in PST.
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.
|26 Sep 2022||– Jupiter at opposition|
|02 Nov 2023||– Jupiter at opposition|
|07 Dec 2024||– Jupiter at opposition|
|10 Jan 2026||– Jupiter at opposition|