| Time it takes to circle and astrological chart (360° in circumference), which also equals the planet's orbit around the sun | |
| Planet: | Time: |
| Jupiter: | Approx. 11.9 Earth years (usually rounded to 12 years), spending approx. one full year in each sign. |
| Saturn: | Approx. 29.5 Earth years to complete its cycle around the chart. Spends approx. 2.4 years in each sign. |
| Uranus: | Approx. 84 Earth years to complete a cycle. Spends approx. 7 years in each sign. |
| Neptune: | Approx. 165 Earth years to comple a cycle. Spends approx. 13.8 years in each sign. |
| Pluto: | Approx. 248 Earth years to complete a cycle. Spends 20.6 years in each sign. |
| Retrograde Periods | |
| Jupiter: | Once per year for 120 days or approx. 4 months. |
| Saturn: | Once per year for 140 days or approx. 5 months. |
| Uranus: | Once per year for 148 days or approx. 5 months. |
| Neptune: | Once per year for 150 days or approx. 6 months. |
| Pluto: | Once per year for approx. 6 months. |
| Number of Satellites (Moons and Asteroids) | |
| Jupiter: | 16 known satellites that fall into three groups: inner eight including the four Galilean moons; the middle four, and the outer four. The Galilean moons are the largest: Io, Europa, Ganymede, and Callisto. |
| Saturn: | 18 moons, of which the largest is Titan and is the second largest moon in the solar system (smaller only to Ganymede). Other moons are Rhea, Tethys, Dione, Iapetus, Enceladus, and Mimas. |
| Uranus: | 21 known moons. Titania is the largest. Cordelia and Ophelia are shepard moons straddling the Epsilon ring. |
| Neptune: | 8 moons with Triton as the largest, which is actually bigger than Pluto and moves in retrograde motion. |
| Pluto: | 1 moon, Charon. |
| Degrees This Planet Moves on Average Per Day | |
| Jupiter: | 30° per year, or .08° per day. |
| Saturn: | 12.5° per year, or .03° per day. |
| Uranus: | 4.3° per year or .01° per day. |
| Neptune: | 2.1° per year or .005° per day. |
| Pluto: | 1.4° per year or .003° per day. |
| Consistency | |
| Jupiter: | Largest planet in the solar system, weighing more than any other planet—it spins faster than any other planet and its constantly changing cloud formations form bands parallel to the equator. The planet is made primarily of liquid hydrogen and helium. |
| Saturn: | Second largest planet in the solar system—broad, bright rings made of icy chunks that encircle equator; cloudy atmosphere that covers an interior of liquid hydrogen and helium. |
| Uranus: | Gas giant and third largest planet in solar system. Axis of rotation makes it look like it is orbiting on its side. Covered in methane clouds that absorb red light. Also has eleven rings. |
| Neptune: | Gas giant, faint ring system; atmosphere consists of hydrogen, helium, and methane. Stormy atmosphere. Crust is icy water, methane and ammonia. |
| Pluto: | Actually a double heavenly body with the other half (sometimes referred to as a moon) known as Charon. Where Pluto is covered with frozen methane, Charon is covered with frozen water. |
| Astrological Sign Rulership | |
| Jupiter: | Sagittarius and Pisces (classical) |
| Saturn: | Capricorn and Aquarius (Classical) |
| Uranus: | Aquarius |
| Neptune: | Pisces |
| Pluto: | Scorpio |