What are the names of the new planets?

Answer 1

PLANETS IN OUR SOLAR SYSTEM: five known since antiquity (Mercury, Venus, Mars, Jupiter and Saturn). Earth reclassified as a sixth planet after 1543. Uranus discovered 1781. Neptune discovered 1846. Eight in all.

The first 4 asteroids discovered (1 Ceres, 2 Pallas, 3 Juno and 4 Vesta) were all regarded as planets from their discovery (1801-7) till the 1860s when that status was withdrawn from them and from a further 11 asteroids discovered from 1845 onwards. For a while we therefore had 23 planets.

Pluto, discovered 1930, was regarded as a planet till 24th August 2006 when it too had that status withdrawn from it and was demoted to being a dwarf planet.

DWARF PLANETS IN OUR SOLAR SYSTEM: three objects are now categorised this way: Pluto, the asteroid 1 Ceres (discovered 1801) and the object 2003 UB 313, temporarily nicknamed Xena which has now in recent days been given the permanent name Eris (after the Greek goddess of Strife and Discord) by the IAU (as has its moon Dysnomia, the daughter of Eris in the Greek myth).

Eris (diameter 2400±100 km) is a little bigger than Pluto (diameter 2306±20 km) and orbits to twice as far away at aphelion (97 AU as compared to Pluto's 49 AU). It is a Scattered Disk Object where Pluto is a Kuiper Belt Object.

There are 12 more candidates for the status of dwarf planet; six of these have names (Sedna, Orcus, Ixion, Charon, Quaoar and Varuna) two have nicknames (Easterbunny and Santa) and four just have year-and-number designations.

Sedna is perhaps the most interesting of these as its highly eccentric orbit extends to ten times as far from the sun as Eris does (975 AU at aphelion as compared to Eris' 97 AU). Sedna is variously regarded as an Inner Oort Cloud Object or an Extended Scattered Disk Object. It traverses both regions of the Solar System.

SMALL SOLAR SYSTEM BODIES IN OUR SOLAR SYSTEM: we now know of 1000 or more Trans-Neptunian Objects, (80% of these in the Kuiper Belt) discovered since 1992 (that is about 70 a year). We now know of some 338,000 asteroids, and are discovering them at a rate of 5,000 a month, Some 13,000 of these have names. It is estimated there may be somewhere between 1.1 and 1.9 million such asteroids of more than 1 kilometre in diameter.

So the Solar System is now both "getting bigger" and "filling up"!

EXTRA-SOLAR PLANETS IN OTHER STAR SYSTEMS: we now know of 200+ such planets orbiting 170+ stars and are finding them at the rate of about 20 a year. Two stars have 4 such planets, four have 3 and fourteen have 2.

The most recently discovered exoplanet is 450 light years away. The nearest is 10 light years away and the farthest is 21,500 light years away. All these exoplanets are within our own galaxy, the Milky Way.

The first Main Sequence star discovered to have a planet, 51 Pegasi had that planet nicknamed Bellerophon but in general these are not given names, just designations. eg the 3 planets Gliese 876 b c and d orbit the red dwarf star Gliese 876 a, 15.34 light years away,

ASTEROID AND KUIPER BELTS AROUND OTHER STARS: in the last two years we have found a belt of such objects around the star Tau Ceti, 11 light years away (10 times as massive as our own asteroid belt) and around the star HD 69830 (25 times as massive as our own asteroid belt) which is 41 light years away, which also has 3 Neptune-sized planets in its habitable zone.

Answer 2

the planets are mercury, venus, earth, mars, jupiter, saturn, uranus, and neptune. the committee assigned to draft the definition for the word "planet" considered a definition that would have included "1 ceres", "136199 eris", and charon, but the general convention preferred a definition that excluded them and "134340 pluto".

http://www.iau.org/fileadmin/content/pdfs/Resolution_GA26-5-6.pdf

pluto is not a planet. pluto and charon are considered a binary system, but two small bodies orbit this system. they are called nix and hydra. this does not change anything about the solar system or pluto. it just corrects the mistake of classifying pluto as a planet initially.

http://en.wikipedia.org/wiki/Pluto

pluto orbits the sun, is round, does not have an isolated orbit (a bunch of other similar bodies have similar orbits.), and is not a satellite so it is a dwarf planet.

this same thing has happened before. beginning in 1800, astronomers found a few bodies orbiting between the orbits of mars and jupiter, and they finally stopped calling them planets after the fourth discovery. astronomers then added numerals to the names, and pluto recently got its numeral. 150 years from now, no one will think of "134340 pluto" as a planet. very few will even know we classified it as a planet. "1 ceres" and "136199 eris" are other dwarf planets.

i have been waiting for this since i was about twelve. i feel somewhat satisfied. i knew that pluto didn't fit the pattern set by the major bodies in the solar system so it was an anomaly. it just felt illogical and "out of place". this was the right thing to do, believe me. i don't understand why so many are having such a problem with this.

i don't know how long this will drag on tho. many planetary scientists are not satisfied that the definition is rigorous enough.

Answer 3

If you are talking about our sloar system, Pluto has been downgraded from a planet to a planetiod. So, there are 8 planets in our solar system. They talked about adding Sedna (UB313-2003), Crese and Pluto's moon Charon to the planetary list, but decided not to include these as planets since there are hundreds of other KBOs (Kuiper Belt Objects) of equal size or greater.
They've decided that in order to be classified a planet, it's overall gravity must cause a spherical body, and these are just too small.

Answer 4

What new planets? The only "new" planets these days are the ones being discovered around other stars.

Answer 5

Planet Claire, Planet P, and Planet Funkadelic sperm.

Answer 6

Which ones? There are over 100

Answer 7

There aren't any.At least in this solar system.If your talking about that new "puffy"planet,it's known as HAT-P-1.

Answer 8

sleepy , dopey , grumpy , and doc.. Pluto is no longer called a planet however. they thought it was just silly

Answer 9

There aren't any.
actually, Pluto isn't one now.

Answer 10

no idea