Today In History: March 19, 1915 The First Picture Of Pluto Was Taken!
Pluto (minor planet designation: 134340 Pluto) is a dwarf planet in the Kuiper Belt. It is the largest known dwarf planet and trans-Neptunian body in the Solar System and the sixteenth largest body orbiting directly around the Sun. It was classified as a planet until 2006. Pluto is one of the most prominent members of the Kuiper Belt, which contains many objects.
Pluto is composed of stone and ice, similar to other members of the Kuiper belt, but is relatively small to planets in this belt. It is about one-fifth the size of the moon in mass and volume. Pluto is closer to The Sun than Neptune at approximately 1/6 of its orbit thanks to the eccentric (eccentric) slope on its axis.
Pluto was considered the ninth planet in the Solar System from its discovery in 1930 until 2006. After the 1970s, Pluto, which was considered a minor planet until 2060 Chiron, a dwarf planet outside the Solar System, was detected, its status as a planet began to be debated. 20. the end of the century and the 21st. at the beginning of the century, many objects resembling Pluto were detected outside the Solar System, and in 2005 Eris, which was estimated to be about 27% larger than Pluto at the time, was added to it. on August 24, 2006, the International Astronomical Union (IAU or UAB) defined the conditions for being a planet in the Solar System. After this identification, Pluto was removed from the planet, and along with Eris and Ceres, a new cluster of “dwarf planets”, also known as the “Kuiper Belt” class, was included. so Pluto was reclassified, added to the minor planets directory, and its astronomical name, i.e. number, was changed to 134340. Pluto is still confirmed as a planet by some researchers.