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Upon discovery, Styx received the minor planet designation S/2012 (134340) 1 because it was the first satellite (S) discovered orbiting the minor planet 134340 Pluto in 2012. It is known informally as "P5", meaning the fifth Plutonian moon to be discovered.
The innermost and largest moon, Charon, was discovered by James Christy on 22 June 1978, nearly half a century after Pluto was discovered. This led to a substantial revision in estimates of Pluto's size, which had previously assumed that the observed mass and reflected light of the system were all attributable to Pluto alone.
Beyond Charon there are four much smaller circumbinary moons. In order of distance from Pluto they are Styx, Nix, Kerberos, and Hydra. Nix and Hydra were both discovered in 2005, [146] Kerberos was discovered in 2011, [147] and Styx was discovered in 2012. [148]
Pluto was discovered in 1930 by Clyde Tombaugh, an American astronomer at the Lowell Observatory in Flagstaff. Cold, ... It did have five known moons: Charon, Nix, Hydra, Kerberos and Styx, all ...
NASA launched the New Horizon spacecraft in 2006 to learn more about the icy dwarf planet Pluto. Here are some of the first photos from that mission, taken from between 125 and 115 million miles away.
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...
The new discovery increases the moons orbiting the "jewel of our solar system" to 82, surpassing Jupiter
Kerberos is a small natural satellite of Pluto, about 19 km (12 mi) in its longest dimension.Kerberos is also the second-smallest moon of Pluto, after Styx.It was the fourth moon of Pluto to be discovered and its existence was announced on 20 July 2011. [1]