Hot index is not rating, it reflects the extent of how tourists know it. Hot index is nothing to do with whether the attraction is good or not, an attraction that everyone knows may not be good, one that nobody knows may not be bad.
1: Almost no one knows
2: Rare people know
3: Some people know
4: Most people know
5: Everyone knows
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Perth Observatory is located on the eastern outskirts of Western Australia's capital, Perth, about 30 kilometers from the city of Perth.
Perth Observatory, Australia's oldest professional observatory and first-class astronomical institution, has served for more than 120 years and is still in operation because of its scientific, cultural and historical significance. Perth Observatory was included in Western Australia's historical heritage in 2005.
Perth Observatory is open to the outside world, providing tours and public education services. Visitors can attend events including night star cluster, day tour, astronomical studio and astronomical activity night. Book in advance.
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