Use this astrological glyph legend to sort out which planets are which. The ascendant is the left side of the dark line running horizontally across the page; it is the horizon. Mercury, the planet with little horns, is on top of the chart; it tends to be prominent in a lot of news charts these days. Jupiter is also on top of the chart, to the right of Mercury. Mars is on the very bottom, looking like the sign on the Men's Room door at Sid's Pub in Manchester. This chart was chart cast in Io Edition software. Return to article.