Halley is the only short-period comet that is clearly visible to the naked eye from Earth, and thus the only naked-eye comet that might appear twice in a human lifetime.
Komet Halley adolah satu-satunyo Komet maso pendek nan sabana jaleh diliek jo mato kapalo dari bumi, penampakan ko mungkin dapek dilieek dek manusia duo kali sa umua hiduiknyo.