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What does ZHR stand for?

ZHR stands for Zenithal Hourly Rate

This definition appears very rarely and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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Other Resources:
We have 2 other meanings of ZHR in our Acronym Attic

Samples in periodicals archive:

Because different observers see different numbers of meteors depending on local viewing position and sky conditions, astronomers compare counts by using a standard called the zenithal hourly rate (ZHR).