The Bortle scale is a nine-level numeric scale that measures the night sky’s brightness of a particular location.
To anyone who hasn’t experienced a true dark sky it is simply awe inspiring and worth the drive to where ever you need to
The Bortle scale is a nine-level numeric scale that measures the night sky’s brightness of a particular location.
To anyone who hasn’t experienced a true dark sky it is simply awe inspiring and worth the drive to where ever you need to