É-he̍k-chheⁿ
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Kin-kù Kok-chè Thian-bûn-ha̍k Chó͘-ha̍p (IAU) 2006 nî ê tēng-gī [1], é-he̍k-chheⁿ (dwarf planet) sī 1 khoán ū ha̍h ē-kha tiâu-kiāⁿ ê chheⁿ-thé (celestial body):
- Ū se̍h Ji̍t-thâu;
- Chit-liōng ū-kàu hō͘ i ka-kī ê ín-la̍t ah koè (rigid body forces), tì-tio̍h i pìⁿ-chiâⁿ (hydrostatic equilibrium) ê hêng (oá kiû-hêng);
- Bô kā i ê kúi-tō hù-kīn chheng chheng-khì;
- M̄ sī oē-chheⁿ.
