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Definition of Zenithal Hourly Rate
1. Noun. (astronomy) number of meteors a single observer would see in one hour under a clear, dark sky (i.e. upto the limiting apparent magnitude of 6.5). ¹
¹ Source: wiktionary.com
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1. Noun. (astronomy) number of meteors a single observer would see in one hour under a clear, dark sky (i.e. upto the limiting apparent magnitude of 6.5). ¹
¹ Source: wiktionary.com