Ia supernova from a white dwarf, possibly the merger of two white dwarfs. This planet orbits around a red dwarf. An example of a dwarf shrub is the bearberry. The prototype dwarf planet is Pluto. It is the most massive of the known dwarf planets. The planet orbits an M-type red dwarf named Proxima Centauri. Such objects are categorized as dwarf planets. Around the 14th century, the term for dwarf potted trees was . However, the IAU classifies dwarf planets as a separate category. Pembroke Welsh Corgis are achondroplastic, meaning they are a "true dwarf" breed. Also included is a small breed from Germany, the Teddy Dwarf. Planetary habitability of red dwarf systems is subject to some debate. One is about a farmer dwarf planting his own bed. The central star then cools to a white dwarf. The degenerate electrons in the bulk of a white dwarf conduct heat well.