Welcome to DU!
The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards.
Join the community:
Create a free account
Support DU (and get rid of ads!):
Become a Star Member
Latest Breaking News
Editorials & Other Articles
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
General Discussion
In reply to the discussion: Pluto is a planet again!!!!!!!!!!!!!!!!!!!!! [View all]Baclava
(12,047 posts)3. sorry, no it isn't - 'Pluto...recognised as of a new class of Trans-Neptunian Objects'
Dwarf Planets, plutoids and the Solar System today
The IAU Resolution means that the Solar System officially consists of eight planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
A new distinct class of objects called dwarf planets was also decided on. It was agreed that planets and dwarf planets are two distinct classes of objects. The first members of the dwarf planet category are Ceres, Pluto and Eris.
http://www.iau.org/public/themes/pluto/

The IAU Resolution means that the Solar System officially consists of eight planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
A new distinct class of objects called dwarf planets was also decided on. It was agreed that planets and dwarf planets are two distinct classes of objects. The first members of the dwarf planet category are Ceres, Pluto and Eris.
http://www.iau.org/public/themes/pluto/

Edit history
Please sign in to view edit histories.
Recommendations
0 members have recommended this reply (displayed in chronological order):
122 replies
= new reply since forum marked as read
Highlight:
NoneDon't highlight anything
5 newestHighlight 5 most recent replies
RecommendedHighlight replies with 5 or more recommendations
sorry, no it isn't - 'Pluto...recognised as of a new class of Trans-Neptunian Objects'
Baclava
Dec 2014
#3
Yeah, if Pluto is a full-fledged planet, then what do we call the larger Eris?
nomorenomore08
Dec 2014
#93
Perhaps the definition of planet can be extended to have an "honorary" category. n/t
Silent3
Dec 2014
#4
Mother Very Easily Made A Jam Sandwich Using No Peanuts, Mayonnaise or Glue
Fozzledick
Dec 2014
#100
Yeah....and watch out for this planet erasing guy.....he is too clever by half.
dixiegrrrrl
Dec 2014
#54
It's less the size and more about orbit clearing AND the fact that if we call
MillennialDem
Dec 2014
#61
I think it should have never been changed being that it was such a big part of astronomical history.
BlueJazz
Dec 2014
#41
a rocky body formed wih this solar system wouldnt be out past the gas giants
belzabubba333
Dec 2014
#47
For many of us it never changed. Finally, the rest of you guys are catching up!
Rowdyboy
Dec 2014
#59
I had 6th grade in 1992 and MVEMJSUNP was drilled into my head too - but you really
MillennialDem
Dec 2014
#80
I liked when a few of them tried suing the IAU or NASA(?!) over the redefinition..
Posteritatis
Dec 2014
#92
This was in my understanding the status quo. The "demotion" was to this type of object from planet.
TheKentuckian
Dec 2014
#98