Dark Sky Meter
Helps you measure the night sky brightness

The Award winning Dark Sky Meter by DDQ helps you measure the night sky brightness with the press of a button.
Get instant information about the night sky quality and contribute to create a global map of sky darkness.
Featured on BBC Television, CBS.com, Scientific American, Scistarter and many more influential websites and magazines.
At a fraction of the cost of a commercial Sky Quality Meter.
Available for download now!

User comment: Fantastic! Settling the argument with my observing friends over which of our sites is better is worth the $5 all by itself. And if I win the wager for a beer, it will be like getting the app for free.
Jeff Morgan, Prescott AZ

Download the app here!


Thank you for providing your measurements to scientists!

👤 🕔 September 2, 2014 Comments Off on Thank you for providing your measurements to scientists!

You can (voluntarily) submit your Dark Sky Meter readings. Besides the map on this website, the data you provide will be sent to scientists worldwide. Of course, no personal data is collected. Just location, weather and darkness information.
One of the most famous campaigns is called Globe at Night, you probably know it.
They did research on our app and it proved to be very reliable in regression tests along with other devices.
And we are really proud that DSM (that is you!) is providing the majority of measurements (2791)!
Here’s a great infographic.
DSM providing GAN data
Also check out the beautiful Globe at Night website. We will join forces during the 2015 year of light!