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Planet
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Planet, po steren gwandra, yw lorel vuer ow mos a-dro dhe'n howl (po steren aral). Yma eth planet y'gan system howlek. An planettys yw rolhes awoles:
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Yn 2006, an Unyans Astronymyk Keswlasek a aswonnys avel 'planettys cor'[1] an try horf ma:
Yn 2008, an Unyans Astronymyk Keswlasek a aswonnys dew gorf moy avel 'planettys cor'.
- Makemake (gelwys wostalleth 2005 FY9)
- Haumea (gelwys wostalleth 2003 EL61)
Corfow erel a vydh keworrys dhe'n classyans ma, dell hevel. Yma gwiasva Prof. Mike Brown gans rol corfow yw possybl bos planettys cor. [2]