It is not alone - recent additions include Makemake, Haumea and Eris.
它不是孤独的——最近还发现了马克·马克星、妊神星和厄里斯星。
Makemake, however, has an orbit much more tilted to the ecliptic plane of the planets than Pluto.
然而，鸟神星的轨道面与黄道面的倾角却比冥王星要大得多。
Makemake is known to be a world somewhat red in appearance, with spectra indicating it is likely covered with frozen methane.
鸟神星的外观偏红色，光谱的观测指出其表面可能覆盖著甲烷冰。
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