[Lady Lucky]

It “opposes” the sun at least once a year, does it not?

[al baby]

earth year or uranus year ?

[ETL]

It “opposes” the sun at least once a year, does it not?

All planets, except those inside Earth's orbit (Mercury and Venus), reach an opposition point once every approximate 12 months. The more distant the planet, the closer to 12 months it is. This is because the more distant planets don't appear to move as much across the sky from year to year (with respect to the background stars).

Opposition dates:

Mars: 29-Jan-2010, 03-Mar-2012
Jupiter: 21-Sep-2010, 28-Oct-2011
Saturn: 03-Apr-2011, 15-Apr-2012
Uranus: 25-Sep-2011, 29-Sep-2012
Neptune: 22-Aug-2011, 24-Aug-2012
Pluto: 28-Jun-2011, 29-Jun-2012