Glossary term: 日心模型
Description: 日心说一词源自希腊语，其中“helios”是太阳的意思，“kentro”意为中心。该模型将太阳置于太阳系的中心，行星围绕它运行，取代了地心说（以地球为中心的模型）。尽管日心说的起源通常归功于16世纪的哥白尼，但早在的古希腊时期，萨摩斯的阿里斯塔克斯就提出了日心模型，印度、欧洲和伊斯兰世界的天文学家也在哥白尼之前讨论过类似的模型。伽利略通过望远镜观测金星的运动，提供了日心说的观测证据。最初的日心模型将太阳置于太阳系的几何中心；这一观点随着开普勒对第谷·布拉赫数据的数学推导而发生变化，后来牛顿通过万有引力定律进一步完善和扩展了这一理论。
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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher The translation of this term and its definition is still awaiting approval
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