Inner-Planet Curtate Orbits - Mercury To Mars

This plot of the inner solar system shows the orbits of Mercury, Venus, Earth, and Mars. The four orbits are plotted to scale on the 9-inch protractor, each orbit circular but placed off center to indicate orbital eccentricity. The part of each orbit below the ecliptic is dashed. Orbit inclinations are indicated, and a scale is provided in astronomical units. Sheet size is 11 by 12½ inches.