Haumea is unique because of its ellipsoid shape, only just meeting the hydrostatic equilibrium criteria for
dwarf planet status.
It is being referred to as the ninth planet, since poor Pluto had been demoted to
dwarf planet status, leaving only eight «real» planets, which does not sit well with a lot of people who still believe that Pluto should be classified as a proper planet, not just a mini-version of one.
And the International Astronomical Union's demotion of Pluto from planet to
dwarf planet status in 2006 seemed to make it even more interesting to the public.
I have always been surprised at the annoyance over Pluto being «demoted» to
dwarf planet status (21 July, p 11).
Not exact matches
DeGrasse Tyson's argument has to do with the fact that he doesn't believe that Pluto's size is qualified for
planet status, even though NASA has announced that the
dwarf planet is slightly larger than they thought.
Ceres received a minor upgrade to «
dwarf planet» in 2006, part of the same process that demoted Pluto to the same
status.
Q7 Pluto's large moon, Charon, was briefly considered for planetary
status in 2006, before Pluto itself was relegated to
dwarf planet.
Since that discovery hundreds of large objects, most more than 100 kilometers in diameter, have been spotted in the Kuiper Belt, including some of the roughly Pluto - size bodies that spurred a redefinition of the word «
planet» and relegated Pluto to
dwarf status.
One amendment would have left its
status open to debate by creating two categories of
planets — the eight «classical
planets» as well as «
dwarf planets» — that might have seemed to be on equal footing.
Ceres is so big that six years ago the International Astronomical Union upgraded its
status to «
dwarf planet,» putting it on equal footing with Pluto.
Pluto becomes just another «plutoid» Opponents of Pluto's 2006 demotion from
planet to «
dwarf planet»
status have a new reason to be peeved at astronomy's official name - issuing organization.
If the early results hold up, this time it's the
dwarf planet Eris's turn to be demoted, and Pluto might have just regained its
status as the largest object in the Kuiper Belt, the ring of icy bodies beyond Neptune.
Many of them put up a fuss two years ago when the International Astronomical Union (IAU) downgraded Pluto to the
status of mere
dwarf planet.
The ability to clear the orbit was one of the main criteria the IAU used in 2006 to justify changing Pluto's
status from
planet to
dwarf planet.
On August 24, 2006, Pluto's
status was officially changed from
planet to
dwarf planet.
Title: The Transit Light Source Effect: False Spectral Features and Incorrect Densities for M -
Dwarf Transiting
Planets Author: Benjamin V. Rackham, Dániel Apai, and Mark S. Giampapa First Author's Institution: The University of Arizona
Status: Published in ApJ
Pluto may have recently been demoted to the
status of
dwarf planet, but as astronomers learn more about this distant body, they are learning it behaves more like a
planet than once believed.
Similarly to
dwarf planets, there are potentially hundreds of plutoid objects in the solar system that have yet to be given official
status.
That means the frigid object probably harbors enough mass to be shaped into a sphere by its own gravity, entitling it to «
dwarf planet»
status, researchers said.
The subsequent relegation of Pluto to «
dwarf planet»
status became worldwide news.
Pluto, which was discovered in 1930, was considered the ninth
planet in the Solar System until 2006 when astronomy's ruling body, the International Astronomical Union, demoted it to the
status of
dwarf planet.