The orange planetary symbols in the outer wheel represent the transiting (moving) planets on January 1, 2019.
In the example below, the inner wheel (with blue planetary symbols) is our birth chart—which is a fixed map that never changes. The orange planetary symbols in the outer wheel represent the transiting (moving) planets on January 1, 2019. A trained astrologer would compare and contrast the two charts. When a transiting (orange) planet makes contact with one of the natal (blue) planets, it activates specific energy, one that can be either opportune or challenging. Knowing this allows you to plan ahead.