give data for reason.
2006-11-02 06:40:02 · 8 answers · asked by ? 6 in Science & Mathematics ➔ Astronomy & Space
The International Astronomical Union decided that Pluto was no longer a planet. Instead, they decided to classify it as a "dwarf planet".
See the details below.
RESOLUTION 5A
The IAU therefore resolves that "planets" and other bodies in our Solar System, except satellites, be defined into three distinct categories in the following way:
(1) A "planet" [footnote 1] 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.
(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 [footnote 2] , (c) has not cleared the neighbourhood around its orbit, and (d) is not a satellite.
(3) All other objects [footnote 3] except satellites orbiting the Sun shall be referred to collectively as "Small Solar-System Bodies".
Footnote 1: The eight "planets" are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
Footnote 2: An IAU process will be established to assign borderline objects into either dwarf planet and other categories.
Footnote 3: These currently include most of the Solar System asteroids, most Trans-Neptunian Objects (TNOs), comets, and other small bodies.
RESOLUTION 6A
The IAU further resolves:
Pluto is a "dwarf planet" by the above definition and is recognized as the prototype of a new category of trans-Neptunian objects.
2006-11-02 06:50:07 · answer #1 · answered by Otis F 7 · 4⤊ 0⤋
Yes, I also heard on the news it has lost its planet status. I think they just should have left Pluto alone! It was a planet all these years and them someone has to pluck it from the solar system! They say now that it is too small to be concidered a planet.
2006-11-02 06:45:06 · answer #2 · answered by Robin L 6 · 1⤊ 0⤋
No, it is actually now a dwarf planet, one step below planet. It is the scond largest dwarf Planet. It was considered a planet for 76 years up untill the discovery of Eris. Eris is the largest Dwarf Planet in the Solar system. It was going to be our 10th planet considering its size but on August 24th, they decided against it and made up a new term (dwarf planet) and made Eris, Pluto and Ceres. To be a dwarf planet you have to orbit the sun, enough mass for it's self-gravity to maintain a round shape even in the face of the pressures of outer space and lastly, (which is the biggest thing) it has to have not cleared the neighboorhood around it's orbit.
2006-11-02 06:55:10 · answer #3 · answered by Matt 2 · 1⤊ 0⤋
Nope it's not a planet. It's just a huge asteroid/meteor that got stuck in our solar system.
2006-11-02 06:46:24 · answer #4 · answered by BABY 3 · 0⤊ 0⤋
Not a planet anymore
2006-11-02 06:47:31 · answer #5 · answered by Isabel G 1 · 0⤊ 0⤋
Pluto is a cartoon Dog!!! LOL!!!
2006-11-02 06:47:26 · answer #6 · answered by ChicaLoca 3 · 0⤊ 1⤋
`We beat this to death MONTHS ago. Do a little research on your own.
2006-11-02 06:42:21 · answer #7 · answered by SPLATT 7 · 0⤊ 1⤋
NO.
I THINK HE IS A DOG
2006-11-02 06:47:18 · answer #8 · answered by Anonymous · 0⤊ 2⤋