We have three that we know but there may be more
In 1999 there were 9 planers recognised in our solar system, but in 2006 this dropped to 8. This was due to Pluto being reclassified as a dwarf planet.
There are currently 5 dwarf planets that are being recognized.
Pluto, Eris, Ceres, Haumea and Makemake are five dwarf planets in our solar system. There are many dwarf planets some discovered and some undiscovered.
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.
7
The are probably many we haven't discovered yet. However currently there are five known dwarf planets.
Since the 2006 reclassification of Pluto to a Dwarf Planet, there are now eight planets in our solar system.
There are currently 5 dwarf planets that are being recognized.
8. Funny how you phrase it "your solar system"
No, Makemake is a dwarf planet, a very small part of our solar system. Galaxies are made of many thousands of solar systems.
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
None. Nor will there by any for a very long time. In about 7 billion years the sun will become a white dwarf, which ten, over the course of trillions of years, cool to become a black dwarf. At that point our solar system (or what is left of it) will have exactly one black dwarf