海尔波普彗星在位于海王星轨道上方出现，因其与太阳之间距离足够远，所以并未出现脏尾。-约翰·迈特森报道。
Comet Hale-Bopp has been spotted beyond the orbit of Neptune, far enough from the sun to be without its dirty tail. John Matson reports.
海尔波普彗星在位于海王星轨道上方出现，因其与太阳之间距离足够远，所以并未出现脏尾。-约翰·迈特森报道。
Comet Hale-Bopp has been spotted beyond the orbit of Neptune, far enough from the sun to be without its dirty tail. John Matson reports.
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