Which celestial body was considered as a planet till 2006 and not a planet after that?

Question

Question

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RRB JE CBT I - (Held On: 31 May 2019 Shift 1)

Answer 1

The correct answer is Pluto

Key Points

Pluto was considered the ninth planet in our solar system until 2006.
In 2006, the International Astronomical Union (IAU) redefined the criteria for classifying planets, which led to Pluto's reclassification as a dwarf planet.
Pluto does not clear its orbit of other debris, which is one of the criteria for full-fledged planets according to the IAU definition.
Pluto is now part of a category of objects known as the Kuiper Belt objects.

Additional Information

The International Astronomical Union (IAU) is responsible for naming and classifying celestial bodies.
Pluto was discovered in 1930 by Clyde Tombaugh.
The reclassification of Pluto was part of a larger effort to better categorize celestial bodies in our solar system.
There are currently five recognized dwarf planets in our solar system: Pluto, Eris, Haumea, Makemake, and Ceres.
Despite its reclassification, Pluto remains an object of significant interest and study in the field of astronomy.
The New Horizons mission by NASA provided detailed images and data about Pluto during its flyby in 2015.