Outer planets & Pluto
Major planet positions are calculated by the VSOP87 method (J. Meeus, Astronomical Algorithms, Willmann-Bell). Positions of Pluto are calculated from the latest osculating elements given in the Minor Planet Centre's database. Star data are from the Hipparcos/Tycho databases.
|Link to chart||Opposition date||Opposition|
|Uranus 2016||2016 Oct 15||5.7|
|Neptune 2016||2016 Sep 2||7.8|
|Pluto 2016||2016 Jul 7||14.1|
next to a chart provides a link to a red-on-black version, for display while observing.
The printed Handbooks have always plotted the outer planets on the coordinate system for the mid-year (eg, J2012.5). Here we have used J2000.0 in the hope that it is more useful in practice. Some feedback would be useful.