News0 min ago
Say Hello to our new found planet Sedna in our Solar System
11 Answers
Did you know that there are not 9 planets in our Solar System. There are 10 and this last little one is called Sedna. See below for details:
http:// en.wiki pedia.o ...iki/ Sedna_( planeto id)
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No best answer has yet been selected by JonnyBoy12. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.What happened was that an increasing number of objects were being found in the outer solar system - Sedna was just one of them.
http:// en.wiki pedia.o ...ans- Neptuni an_obje cts
It was getting to the point where we were going to be either adding planets on a regular basis or we were going to have to redefine a planet and probably lose Pluto in the process
The International Astronomical Union decided on the latter.
The rule was a planet had to orbit the sun and be massive enough to have a reasonably spherical form.
To these wo they added a further rule that to be a planet an object had to have generally cleared its orbit of other bodies.
This effectively declassified trans-Neptune objects as planets
http://
It was getting to the point where we were going to be either adding planets on a regular basis or we were going to have to redefine a planet and probably lose Pluto in the process
The International Astronomical Union decided on the latter.
The rule was a planet had to orbit the sun and be massive enough to have a reasonably spherical form.
To these wo they added a further rule that to be a planet an object had to have generally cleared its orbit of other bodies.
This effectively declassified trans-Neptune objects as planets
Thanks for your speedy replies, folks but I really do not like people stealing planets from our solar system. I may have to call the Planetary Police if you do this much more. Dwarf planets have feelings too, you know.
My Very Excellent Mother Just Served Us Nine Pizzas
This is a good way to recall your old 9 planets.
My Very Excellent Mother Just Served Us Nine Pizzas
This is a good way to recall your old 9 planets.
It was actually Eris that set the cat amoungst the pigeons because it is larger than Pluto
It was that that lead to Pluto's downgrade otherwise all these would probably have a good case to be planets too
http:// en.wiki pedia.o ...ki/F ile:Eig htTNOs. png
It was that that lead to Pluto's downgrade otherwise all these would probably have a good case to be planets too
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