Dominic Ford, Editor
From the Outer Planets feed
In practice, however, Jupiter's orbit is very close to circular; its distance from the Sun only varies by about 10.1% 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 Ashburn, at the moment of aphelion it will be visible in the morning sky, becoming accessible around 22:48, when it rises to an altitude of 7° above your eastern horizon. It will then reach its highest point in the sky at 03:46, 43° above your southern horizon. It will be lost to dawn twilight around 06:39, 28° above your south-western horizon.
The position of Jupiter at the moment it passes aphelion will be:
|Object||Right Ascension||Declination||Constellation||Magnitude||Angular Size|
The coordinates above are given in J2000.0.
|The sky on 17 February 2017|
20 days old
All times shown in EST.
The circumstances of this event were computed using the DE405 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.
|08 Mar 2016||– Jupiter at opposition|
|07 Apr 2017||– Jupiter at opposition|
|08 May 2018||– Jupiter at opposition|
|10 Jun 2019||– Jupiter at opposition|