(Last edited: Wednesday, 27 September 2023, 2:56 PM)
Short
Definition
Neptune is the eighth planet in our solar system and a gas giant characterized
by its intense blue color. With its strong winds, reaching speeds of over 1,000
miles per hour, and its features such as dark spots and atmospheric
disturbances, Neptune offers scientists a subject of study, providing insights
into the dynamics and composition of outer gas giants.
Detailed Definition
Neptune is a gas giant, primarily composed of hydrogen and helium, with a
distinct bluish colouration that is a result of its atmospheric methane content. One of the defining characteristics of Neptune is its size. It has a diameter
of about 49,500 kilometres, making it nearly four times the size of Earth. It
is also the fourth-largest planet by diameter and the third-most massive planet
in our solar system, with a mass seventeen times that of Earth. This immense
size contributes to the planet's powerful gravitational pull, which has a
significant influence on the surrounding space.
Neptune is known for its dynamic and violent atmospheric conditions. It
experiences extremely high wind speeds, reaching astonishing velocities of over
1,600 kilometres per hour - the fastest in the solar system. These powerful
winds create distinct cloud formations and atmospheric bands that can be
observed from space. From its immense size and atmospheric composition to its fierce winds and
intriguing dark spots, this gas giant remains a source of fascination and
wonder.
Etymology
The name "Neptune" originates from Roman mythology. In Roman
mythology, Neptune was the god of the sea, freshwater, and earthquakes. The
planet Neptune was named after this deity due to its deep blue colour,
reminiscent of the vastness of the sea.
·
Moses, J. A., Cavalié, T., Fletcher, L. N., & Roman, M. R. (2020).
Atmospheric chemistry on Uranus and Neptune. Philosophical Transactions of
the Royal Society A, 378(2187), 20190477. https://doi.org/10.1098/rsta.2019.0477
