Search results
Results from the WOW.Com Content Network
Pluto's origin and identity had long puzzled astronomers. One early hypothesis was that Pluto was an escaped moon of Neptune [161] knocked out of orbit by Neptune's largest moon, Triton. This idea was eventually rejected after dynamical studies showed it to be impossible because Pluto never approaches Neptune in its orbit. [162]
On 1 September 1979, Pioneer 11 passed within 13,000 mi (21,000 km) of the planet's cloud tops at a speed of 71,000 mph (114,000 km/h). An animation of a sequence of images taken by the Voyager 1 probe of the planet Jupiter. One frame was taken every Jupiter day, about 10 hours, from 1 June 1979 to 2 March 1979, giving 66 frames in all. [3]
The orbits are ellipses, with foci F 1 and F 2 for Planet 1, and F 1 and F 3 for Planet 2. The Sun is at F 1. The shaded areas A 1 and A 2 are equal, and are swept out in equal times by Planet 1's orbit. The ratio of Planet 1's orbit time to Planet 2's is (/) /.
Five planets are going to be retrograde in the summer of 2024. Here are the dates for Mercury retrograde, Venus retrograde, Saturn retrograde, Neptune retrograde, Pluto retrograde and more.
While the majority of plutinos have relatively low orbital inclinations, a significant fraction of these objects follow orbits similar to that of Pluto, with inclinations in the 10–25° range and eccentricities around 0.2–0.25; such orbits result in many of these objects having perihelia close to or even inside Neptune's orbit, while ...
Like Pluto, this plutino spends part of its orbit closer to the Sun than Neptune. Like all resonant trans-Neptunian objects its orbit is dominated by Neptune. Simulations by the Deep Ecliptic Survey (DES) show that over the next 10 million years 1996 TP 66 can acquire a perihelion distance (q min) as small as 25.9 AU. [3] Objects like Huya and ...
The motions of Orcus (in grey) and Pluto (in red) in a rotating frame with a period equal to Neptune's orbital period (holding Neptune stationary) Pluto and its moons (top) compared in size, albedo and colour with Orcus, 2003 AZ 84, and Ixion. The 2:3 resonance at 39.4 AU is by far the dominant category among the resonant objects.
Solar System – gravitationally bound system comprising the Sun and the objects that orbit it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets (including Earth), with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies.