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The Kuiper belt was discovered with UH88, which is the fourth from the left. In 1987, astronomer David Jewitt , then at MIT , became increasingly puzzled by "the apparent emptiness of the outer Solar System". [ 16 ]
The name "Kuiper belt" was given to the region in the 1980s; [9] it was first used in print by Scott Tremaine in 1988. [10]: 191 In the 1960s, Kuiper helped identify landing sites on the Moon for the Apollo program. [a] Kuiper discovered several binary stars which received "Kuiper numbers" to identify them, such as KUI 79.
The Kuiper belt, scattered disk, and Oort cloud are three conventional divisions of this volume of space. [1] ... The first TNO to be discovered was Pluto in 1930.
Kuiper belt (>1,000) (scale in ... Pluto (30–49 AU, about 34 AU in 2015) was the first Kuiper belt object to be discovered (1930) and is the largest known dwarf planet.
He discovered Pluto in 1930, the first object to be discovered in what would later be identified as the Kuiper belt. At the time of discovery, Pluto was considered the ninth planet, but was reclassified as a dwarf planet in 2006. Tombaugh also discovered many asteroids, and called for the serious scientific research of unidentified flying objects.
Other objects, such as 28978 Ixion (discovered in 2001) and 20000 Varuna (discovered in 2000) measure roughly 500 km across. [1] This has led gradually to the acceptance of Pluto as the largest member of the Kuiper belt. [citation needed] The brightest known dwarf planets and other KBOs (with absolute magnitudes < 4.0) are:
Over one thousand bodies were found in the Kuiper belt orbiting between about 30 and 50 AU from the Sun in the twenty years after finding 15760 Albion. This revealed a vast belt of bodies, more than just Pluto and Albion themselves. [17] [18] By 2018, over 2000 Kuiper belt objects were discovered. [18]
a dwarf planet, the first TNO discovered, and largest-known TNO. It is the only TNO known to have an atmosphere. Hosts a system of five satellites and is the prototype plutino: 15760 Albion: the prototype cubewano, the first Kuiper belt object discovered after Pluto (385185) 1993 RO: the next plutino discovered after Pluto (15874) 1996 TL 66