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There are currently five known "dwarf planets", but it is certain that there are many more in the Kuiper Belt that have not yet been identified.
The five known ones are:
- Pluto (used to be the 9th planet)
- Ceres (the biggest of the asteroids in the asteroid belt)
- Eris (was going to be the tenth planet, before the IAU mucked things up)
- Haumea
- Makemake
Any body in the Kuiper Belt with enough mass to attain "hydrostatic equilibrium" - meaning that it has enough mass that its gravity crushes it into a sphere - will be another "dwarf planet". There may be dozens or hundreds of them, but they are so small and far away that we haven't noticed them yet.
Wait about 6 more years, until the James Webb Space Telescope is launched. It ought to be able to pick out a few.
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∙ 11y ago
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Which planet has 300 times greater mass than earth?
In our Solar System, Jupiter has approximately that mass. Many of the extrasolar planets discovered so far have similar masses as well.
What is the largest planet in the solar system and how many earths could fit inside it?
The volume of our solar system's largest planet, Jupiter, is 1320 times the volume of Earth.
Are there any mountains on planets other than earth?
There are many examples of mountains on planets and moons, some formed by volcanoes, some by tectonic action and some as impact craters.The largest mountains in the solar system are on Mars.Olympus Mons on Mars is the largest mountain in the solar system at 22 km or 14 miles high.There are three more on Mars higher than Mauna Kea and Mauna Loa (10.2 kilometers or 6.3 miles), the largest on Earth as measured from the base to the top. (Not measured from the top to sea level.)Maxwell Montes on Venus is 6.4 kilometers ( 4 miles) high.Our moon and the moons of other planets also have mountains.Of course, mountains do not exist on the giant gas planets, but the moons of those planets can have mountains.There is a list in the related links.
What planet has water except earth?
There are no other planets in THIS solar system that are naturally ready to support human life. Which isn't to say that this will always be the case; we can easily settle on the Moon and Mars because our technology allows us to create human environments where there are none now. And it may be possible to terraform even Venus or some of the Jovian moons to the point where they would be habitable. Beyond our solar system, the Kepler space telescope has located 1200+ candidate planets; other stars with satellites which seem to occasionally pass in front of the star and block its light. We cannot yet know if any of them are even REMOTELY habitable; based on their sizes, it's likely that none of them are. But such a high rate of planetary discovery SO EARLY IN THE PROCESS seems to indicate that planets won't be as rare as some scientists believed; it may be that many, perhaps even most, planets will have solar systems of their own. It is practically certain that some of those planets will be earth-like, or at least, close enough to be terraformed into someplace where we could live. Water; we know the Moon has ice deposits in deep craters near the south pole. Mars has ice, and has frost; in fact, the Mars "Phoenix" lander was probably destroyed when too much ice formed on the solar panels and broke them. Photos of the Jovian satellite Europa indicate that there are cracks and ridges in the surface; computer modelling suggest that these may be cracks in an ice-covered ocean, and the ridges form when water splashing up the fissures re-freeze into ridges. Some of Saturn's rings may contain chunks of water ice.
A space word starting with R?
Rocket, Rings of Saturn. Radio telescope Red dwarf star Red giant star Redshift (Doppler effect, etc.) Retrograde (motion) Regulus (star) Rigel (star) Radiant (of meteor showers)
How many planets revolve around this solar system's sun?
Our solar system has 8 regular planets and a number of dwarf planets.
What are the names of alln five dwarf planets in your solar system?
Pluto, Eris, Ceres, Haumea and Makemake are five dwarf planets in our solar system. There are many dwarf planets some discovered and some undiscovered.
How many planets are in our solar sytem?
There are eight planets in our solar systemThe Planets extending from the sun in order:MercuryVenusEarthMarsJupiterSaturnUranusNeptuneWe've found 5 dwarf planets as wellThe dwarf planets in size order:ErisPlutoHaumeaMakemakeCeres
How many planets in your solar systems?
8. Funny how you phrase it "your solar system"
How many Dwarf planet are in your solar system?
There are currently 5 dwarf planets that are being recognized.
How many dwarfs planets are in solar system?
There are currently 5 dwarf planets that are being recognized.
How many dwarf planets are there in the milky way galaxy?
It is not known. Scientists are still not sure how many dwarf planets are in the solar system or how many true planets are in the galaxy. If estimates from our solar system apply elsewhere, however, the number is probably in the trillions.
How many planets of the solar system without Pluto?
Since the 2006 reclassification of Pluto to a Dwarf Planet, there are now eight planets in our solar system.
How many planets is in earth's star system?
There are eight planets and five dwarf planets in our solar system.Planets:MercuryVenusEarthMarsJupiterSaturnUranusNeptuneDwarf Planets:CeresPlutoHaumeaMakemakeEris
How many planets are that there are named?
In our solar system there are 8 true planets and hundreds of dwarf planets, in other solar systems around 404 planets have been named.
How many planets are in my solar system?
Unless you are an alien from another star from me, 8 planets, with a small handful of dwarf planets.
How many planets are their in solar system?
there are 8 planets providing that Pluto is a dwarf planet and therefore doesn't count
