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2. Solar System - Wikipedia

   en.wikipedia.org/wiki/Solar_System

   Thus, the Sun occupies 0.00001% (1 part in 10 7) of the volume of a sphere with a radius the size of Earth's orbit, whereas Earth's volume is roughly 1 millionth (10 −6) that of the Sun. Jupiter, the largest planet, is 5.2 AU from the Sun and has a radius of 71,000 km (0.00047 AU; 44,000 mi), whereas the most distant planet, Neptune, is 30 AU ...

3. File:4k video of the Sun's surface activity.ogv - Wikipedia

   en.wikipedia.org/wiki/File:4k_video_of_the_Sun's...

   What links here; Upload file; Special pages; Printable version; Page information; Get shortened URL; Download QR code

4. Earth's orbit - Wikipedia

   en.wikipedia.org/wiki/Earth's_orbit

   Since this value is close to zero, the center of the orbit is relatively close to the center of the Sun (relative to the size of the orbit). As seen from Earth, the planet's orbital prograde motion makes the Sun appear to move with respect to other stars at a rate of about 1° eastward per solar day (or a Sun or Moon diameter every 12 hours).

5. List of natural satellites - Wikipedia

   en.wikipedia.org/wiki/List_of_natural_satellites

   Due to Earth's varying distance from these planets (as well as their distance to the Sun), the limits at which we are able to detect new moons are very inconsistent. As the below graph demonstrates, the maximum absolute magnitude (total inherent brightness, abbreviated H) of moons we have detected around planets occurs at H = 18 for Jupiter, H ...

6. File:Motion of Sun, Earth and Moon around the Milky Way.jpg

   en.wikipedia.org/wiki/File:Motion_of_Sun,_Earth...

   English: Sun's Path Around the Milky Way. An illustration showing the path of the Sun, Earth and Moon around the Milky Way. The inclinations of the Ecliptic Plane and Celestial Equator are shown with respect to the Galactic North Pole and Galactic Plane. The inclination of the moon's orbit is shown relative to the Ecliptic Plane.

7. Kepler's laws of planetary motion - Wikipedia

   en.wikipedia.org/wiki/Kepler's_laws_of_planetary...

   Planet orbiting the Sun in a circular orbit (e=0.0) Planet orbiting the Sun in an orbit with e=0.5 Planet orbiting the Sun in an orbit with e=0.2 Planet orbiting the Sun in an orbit with e=0.8 The red ray rotates at a constant angular velocity and with the same orbital time period as the planet, =.

8. Sedna (dwarf planet) - Wikipedia

   en.wikipedia.org/wiki/Sedna_(dwarf_planet)

   [32] [82] This planet would be perhaps six times as massive as Earth. [83] It would have a highly eccentric orbit, and its average distance from the Sun would be about 15 times that of Neptune (which orbits at an average distance of 30.1 astronomical units (4.50 × 10 9 km)). Accordingly, its orbital period would be approximately 7,000 to ...

9. Formation and evolution of the Solar System - Wikipedia

   en.wikipedia.org/wiki/Formation_and_evolution_of...

   Moons have come to exist around most planets and many other Solar System bodies. These natural satellites originated by one of three possible mechanisms: Co-formation from a circumplanetary disc (only in the cases of the giant planets); Formation from impact debris (given a large enough impact at a shallow angle); and; Capture of a passing object.