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planeetat

Planeetat is the Finnish plural form of planeetta, meaning planets. In Finnish astronomy, planeetat are celestial bodies that orbit a star, have sufficient mass for a nearly round shape, and have cleared their orbital neighbourhood of other debris. This definition mirrors the International Astronomical Union (IAU) criteria established in 2006 for planethood, though everyday Finnish usage often refers to planets within our Solar System specifically.

Planets are categorized by composition and size into terrestrial (rocky) planets such as Mercury, Venus, Earth

Planetary formation is understood to result from the accretion of material in a protoplanetary disk around

Note that Pluto is classified as a dwarf planet rather than a full planet under the IAU

and
Mars,
and
giant
planets,
which
include
gas
giants
like
Jupiter
and
Saturn
and
ice
giants
like
Uranus
and
Neptune.
In
addition
to
Solar
System
planets,
thousands
of
planets
beyond
the
Solar
System—eksoplaneetat
(Finnish
for
exoplanets)—have
been
discovered
around
other
stars,
ranging
from
hot
Jupiters
to
rocky
super-Earths.
a
young
star.
The
study
of
planeetat
helps
scientists
understand
planetary
system
formation,
evolution,
and
potential
habitability.
definition.
The
term
eksoplaneetat
is
used
in
Finnish
to
refer
to
planets
orbiting
stars
other
than
the
Sun,
broadening
the
scope
beyond
the
eight
planets
of
our
Solar
System.