how many palnets are there in our solar system?is pluto not a palnet anymore?please explain?

Answer 1

You misspelled "planet" twice so it isn't a typo.

You can't spell.

Concentrate on spelling. We can deal with planets (or palnets) later.

Answer 2

The International Astronomical Union (IAU), the official scientific body for astronomical nomenclature, defines "planet" as a celestial body that:[1][2]

(a) is in orbit around a star or stellar remnants;
(b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape;
(c) is not massive enough to initiate thermonuclear fusion of deuterium in its core; and,
(d) has cleared the neighbourhood around its orbit.

Our solar system is considered to have eight planets under this definition: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Three bodies which fulfill the first three conditions but not the fourth are now classified as dwarf planets: Ceres, Pluto and 2003 UB313. There have been more than two hundred planets discovered orbiting other stars to date.

Before the adoption of a recent resolution, there was no scientifically specified definition of "planet", although various notable astronomers had made proposals as part of the ongoing debate. Without a definition, the solar system had been traditionally seen as having various numbers of accepted planets over the years. It remains to be seen whether the new definition will become universally accepted both within the astronomical community, where there has been significant opposition to the recent adoption, and in the eyes of the greater public.

Answer 3

Now there are 8 planets in our solor systen since Pulto was discounted as a planet. Our solar system consists of an average star we call the Sun, the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. It includes: the satellites of the planets; numerous comets, asteroids, and meteoroids; and the interplanetary medium. The Sun is the richest source of electromagnetic energy (mostly in the form of heat and light) in the solar system. The Sun's nearest known stellar neighbor is a red dwarf star called Proxima Centauri, at a distance of 4.3 light years away. The whole solar system, together with the local stars visible on a clear night, orbits the center of our home galaxy, a spiral disk of 200 billion stars we call the Milky Way. The Milky Way has two small galaxies orbiting it nearby, which are visible from the southern hemisphere. They are called the Large Magellanic Cloud and the Small Magellanic Cloud. The nearest large galaxy is the Andromeda Galaxy. It is a spiral galaxy like the Milky Way but is 4 times as massive and is 2 million light years away. Our galaxy, one of billions of galaxies known, is traveling through intergalactic space.

The planets, most of the satellites of the planets and the asteroids revolve around the Sun in the same direction, in nearly circular orbits. When looking down from above the Sun's north pole, the planets orbit in a counter-clockwise direction. The planets orbit the Sun in or near the same plane, called the ecliptic. Composition Of The Solar System
The Sun contains 99.85% of all the matter in the Solar System. The planets, which condensed out of the same disk of material that formed the Sun, contain only 0.135% of the mass of the solar system. Jupiter contains more than twice the matter of all the other planets combined. Satellites of the planets, comets, asteroids, meteoroids, and the interplanetary medium constitute the remaining 0.015%.

Answer 4

There are only planets in the solar system. Pluto is no more considered as a planet as it has a highly eccentric orbit and may not be under the gravitational influence of the sun. This is what the Intl Astronomical Union feels. Hence now there are only 8 planets in our solar system.

Answer 5

Since the recent IAU reclassificatiom in Prague, a census of the Solar System would list

1 star

8 planets

3 dwarf planets (Pluto Xena and Ceres)

about 1,000 Trans-Neptunian Objects, about 340,000 asteroids and a lot of comets, collectively known as SSSBs (Small Solar System Bodies)

The planets have 162 moons, the dwarf planets have 4 and the SSSBs about 80,

Answer 6

Pluto is planet or not a planet is still a debate. As per planet defination it qualifies as a planet. But the problem is this body resides at the far outside of the solar system which shares properties similar to many of such. Example Xena.
But only explanation which it does'nt qualify as a planet is, when it is brought near to sun (assume say in earth orbit), this planet vaporize (as it made of methane ice).

Answer 7

According to the authority of the IAU, there are nine planets in our solar system. In increasing distance from the Sun they are (with the astronomical symbol in brackets and their natural satellites):

1. Mercury (☿)
2. Venus (♀)
3. Earth (♁) with one confirmed natural satellite, Luna (the Moon)
4. Mars (♂) with two confirmed natural satellites, Phobos and Deimos
5. Jupiter (♃) with sixty-three confirmed natural satellites
6. Saturn (♄) with forty-seven confirmed natural satellites
7. Uranus (Astronomical symbol for Uranus) with twenty-seven confirmed natural satellites
8. Neptune (♆) with thirteen confirmed natural satellites
9. Pluto (♇) with three confirmed natural satellites, Charon, S/2005 P 1 and S/2005 P 2

However, there is some pressure for Pluto to be reclassified as a Kuiper Belt object, especially in light of the discovery of 2003 UB313 (temporarily nicknamed "Xena"). This object, however, has not yet received a definitive classification from the IAU.

Answer 8

Seems like most of the answers stated that pluto is not a planet, so there are 8 planets only. But I thought last time they discovered another planet and named it Sedna? Which was then the 10th planet? What happened to that one too huh? Ahaha, I am so confused.

Answer 9

Pluto is now classified as a dwarf planet. In terms of fully-fledged planets there are 8 of those in the solar system. However this dwarf planet thing is a very stupid move if you ask me.

Answer 10

What exactly is a "palnet"???

Did you notice that this site has a spell check?