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Pindaan dalam Huraian Sukatan Pelajaran Sains Terjemahan Tahun 4 Berkaitan Status Planet Pluto Dalam Sistem Suria.

By the end of the International Astronomical Union (IAU) General Assembly on 24 August 2006 at Prague, the IAU therefore resolves that planets and other bodies, except satellites, in our solar system be defined into three distinct categories in the following way:
1)A “planet” is a celestial body that
a)is in orbit around the Sun,
b)has sufficient mass for its self-gravity to
   overcome rigid body forces so that it assumes
   a hydrostatic equilibrium ( nearly round ) shape
   and
c)has cleared the neighbourhood around its orbit
                                                                                       

The eight ‘planets’ are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

2)A ‘dwarf planet’ is a celestial body that
a)is in orbit around the Sun
b)has sufficient mass for its self-gravity to
   overcome rigid body forces so that it assumes
   a hydrostatic  equilibrium ( nearly round )
   shape and
c)has cleared the neighbourhood around its orbit
d)is not a satellite

3)’Small Solar-System Bodies’ referred all other
objects (Solar System asteroids most Trans-
Neptunium Objects (TNOa), comets and other
small bodies) except satellites orbiting the
Sun.
Huraian Sukatan Sains (Terjemahan) Tahun 4 boleh dimuat turun dari laman web BPK di


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