Everyone Can Help Reduce Artificial Light At Night & Resulting Light Pollution!

Please Follow These “Responsible” Lighting Guidelines:

  • Turn on outside lights Only When Needed, use timers and motion sensors.
  • Keep ALL Outdoor lights shining Downward, no light above the horizontal.
  • Use the Right Amount of light for the task at hand, more is not better.
  • Use light sources (lamps) under 3,500K (warmer colors) for ALL outside lights

Over 2,200 Student Research Projects at SARSEF – March 2020

Half of the Southern Arizona Research Science Engineering Fair (SARSEF) K-12 Projects. We judged those that pertained to Light Pollution and/or Artificial Light At Night. We awarded 8 cash prizes and certificates.
SARSEF is still happening but due to Covid it is all online including the judging.

A Wonderful Poem “Saving the Desert’s Dark Skies” . Presented to the IDA at their Annual General Meeting held in December, 2016.  By Xander, an inspired 6th grade student. (read)

How Much Light Pollution Do You Have Where You Live? See map, then.. pan and zoom in/out for any part of the world. The map legend shows two sets of readings.  The dots are the colors with corresponding ranges, same values when measuring sky brightness using the handheld Sky Quality Meter (SQM).

Astronomy in Southern Arizona – Light Pollution, especially in Southern Arizona, must be kept in check or better yet reduced to protect our astronomy and optics industry which is estimated to be over $500 Million per year. A high salary clean industry, what more could you ask for!

Kitt Peak National Observatory, part of the National Optical Astronomy Observatory (NOAO), supports the most diverse collection of astronomical observatories on Earth for nighttime optical and infrared astronomy and daytime study of the Sun.  Located about 50 miles SW of Tucson, they operate 22 optical telescopes and two radio telescopes.

The Mirror Lab, housed in the U of A football stadium, consists of a team of scientists and engineers who make giant, lightweight mirrors of unprecedented power for a new generation of optical telescopes. These are the largest and most precise telescope mirrors in the world, up to 8.4 meters (27.7 feet) in diameter. Tours are available, see our Links page.

University of Arizona Football Stadium Lighting – A replacement of the football stadium field lights to be able to broadcast in High Definition. Added twice as much light on the field from a more downward angle. Using Musco full cut off fixtures they saved 25% electricity costs, light spill out of the stadium was significantly reduced (about 60%) as well as light in the faces of the spectators (glare) greatly reduced. Lighting projects need to be engineered with minimal Light Pollution as a driving factor.

Our parent IDA organization has a very comprehensive web site.

last updated: 5/02/22