Tenth planet is a term formerly applied to possible planets beyond Neptune, before the reclassification of Pluto. It may also refer to:
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and continued at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.
Pluto is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume, by a small margin, but is slightly less massive than Eris. Like other Kuiper belt objects, Pluto is made primarily of ice and rock and is much smaller than the inner planets. Pluto has only one sixth the mass of Earth's moon, and one third its volume. Pluto was recognized as a planet until 2006.
A natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body. Natural satellites are colloquially referred to as moons, a derivation from the Moon of Earth.
Brazilian jiu-jitsu is a self-defence martial art and combat sport based on grappling, ground fighting, and submission holds. BJJ focuses on taking ones opponent down to the ground, gaining a dominant position, and using a number of techniques to force them into submission via joint locks or chokeholds.
A minor-planet moon is an astronomical object that orbits a minor planet as its natural satellite. As of January 2022, there are 457 minor planets known or suspected to have moons. Discoveries of minor-planet moons are important because the determination of their orbits provides estimates on the mass and density of the primary, allowing insights into their physical properties that are generally not otherwise accessible.
Submission wrestling, also known as submission grappling, submission fighting or simply grappling, is a competitive martial art and combat sport that focuses on ground fighting and submission techniques. It is a hybrid discipline that incorporates elements of various grappling arts, mostly Brazilian jiu-jitsu but also Judo, Sambo, and wrestling. Submission wrestling is practiced both as a competitive sport and as a training method for self-defence and mixed martial arts (MMA).
The definition of the term planet has changed several times since the word was coined by the ancient Greeks. Greek astronomers employed the term ἀστέρες πλανῆται, 'wandering stars', for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different celestial bodies, from the Sun and the Moon to satellites and asteroids.
Edgar Bravo is an American martial arts instructor, podcaster, stand-up comedian, and musician. After earning a black belt in Brazilian Jiu-Jitsu in 2003, Bravo began teaching his own self-developed style of jiu-jitsu and founded 10th Planet Jiu-Jitsu. He is also the creator of the Eddie Bravo Invitational (EBI) grappling competition and the EBI ruleset. He is a recurring guest on The Joe Rogan Experience and the Tin Foil Hat Podcast.
A red belt is one of several colored belts used in some martial arts to either denote rank or differentiate opponents in a competition. Like the more commonly known black belt, its use varies between arts, with most using it for the style founder, grandmaster or other high rank, while others use it as the immediately pre–black belt rank or even to denote a beginner who holds no rank. In some schools, especially those with lineage related to Kodokan judo, a red belt signifies ninth or tenth degree dan rank, the highest ranks attainable.
A dwarf planet is a small planetary-mass object that is in direct orbit of the Sun, smaller than any of the eight classical planets. The prototypical dwarf planet is Pluto. The interest of dwarf planets to planetary geologists is that they may be geologically active bodies, an expectation that was borne out in 2015 by the Dawn mission to Ceres and the New Horizons mission to Pluto.
The International Astronomical Union (IAU) defined in August 2006 that, in the Solar System, a planet is a celestial body that:
Eris is the most massive and second-largest known dwarf planet in the Solar System. It is a trans-Neptunian object (TNO) in the scattered disk and has a high-eccentricity orbit. Eris was discovered in January 2005 by a Palomar Observatory–based team led by Mike Brown and verified later that year. In September 2006, it was named after the Greco–Roman goddess of strife and discord. Eris is the ninth-most massive known object orbiting the Sun and the sixteenth-most massive overall in the Solar System. It is also the largest known object in the solar system that has not been visited by a spacecraft. Eris has been measured at 2,326 ± 12 kilometers (1,445 ± 7 mi) in diameter; its mass is 0.28% that of the Earth and 27% greater than that of Pluto, although Pluto is slightly larger by volume. Both Eris and Pluto have a surface area that is comparable to the area of Russia or South America.
The fictional portrayal of the Solar System has often included planets, moons, and other celestial objects which do not actually exist in reality. Some of these objects were, at one time, seriously considered as hypothetical planets which were either thought to have been observed, or were hypothesized to be orbiting the Sun in order to explain certain celestial phenomena. Often such objects continued to be used in literature long after the hypotheses upon which they were based had been abandoned.
10P, 10-P or 10.P may refer to:
The Brazilian jiu-jitsu gi is the training uniform adapted from the judo keikogi for use in Brazilian jiu-jitsu. A gi, meaning dress or clothes, is composed of a heavy cotton jacket, reinforced drawstring pants, and a belt which communicates rank. Some schools require the jacket and trousers to be the same color, while more relaxed schools do not enforce matching top and bottom color. The Brazilian jiu-jitsu gi is often referred to as kimono by Brazilians. Some Jiu-Jitsu schools avoid using a gi and instead focus on no-gi jiu-jitsu; 10th Planet Jiu Jitsu is an example of this.
Ninth planet is a concept related to planets beyond Neptune.
10th Planet Jiu-Jitsu is a non-traditional system of Brazilian jiu-jitsu developed by Eddie Bravo. It was one of the first jiu-jitsu systems to avoid using a gi.
The Brazilian jiu-jitsu ranking system signifies a practitioner's increasing level of technical knowledge and practical skill within the art. Colored belts worn as part of the uniform are awarded to the practitioner. The ranking system shares its origins with the judo belt-rank system, but the Brazilian system incorporates some minor differences from Judo such as a division between youths and adults and the issuance of stripes and degrees. Some differences have become synonymous with the art, such as a marked informality in promotional criteria, a focus on competitive demonstration of skill, and conservative promotion.
Styx is a small natural satellite of Pluto whose discovery was announced on 11 July 2012. It was discovered by use of the Hubble Space Telescope, and is the smallest of the five known moons of Pluto. It was imaged along with Pluto and Pluto's other moons by the New Horizons spacecraft in July 2015, albeit poorly with only a single image of Styx obtained.