Tag Archives: dark sky

Dark Sky Week

22 Apr

It’s Earth Day – a great time to think about how we can be better stewards of the planet. But it’s not just Earth Day – this week is also International Dark Sky Week. Tucson has been on the forefront of the responsible lighting movement for many years. With Tucson’s population expanding in the mid 20th century and an increased reliance on street lights and other outdoor lighting, the many observatories and astronomy institutions in the area were in danger of being put out of business. Light pollution was threatening to obscure faint objects in space. Tucson and Pima County enacted laws in the 1970s and 1980s to make sure proper light bulbs were used and that lights were directed down where the light is needed instead of polluting the sky. One of the first things I noticed when I moved to Tucson was how dark it is here at night – so it was very interesting to discover the history behind the dark nights and the beautiful stars that can be enjoyed around town even without a telescope! In honor of Dark Sky Week, here is a photo taken from the Steward Observatory:

Trifid Nebula taken from the Steward Observatory in Tucson in May 1970. PC214f159_G. As always, if you'd like to use an image from this blog, please contact us at ahsref@azhs.gov for permissions.

Trifid Nebula taken from the Steward Observatory in Tucson in May 1970. PC214f159_G. As always, if you’d like to use an image from this blog, please contact us at ahsref@azhs.gov for permissions.

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