SAVE THE NIGHT SKY!

We promote one simple idea:  Light what you need, when you need it.

IDA's coordinated global effort is making a difference, one light, one star, one region at a time.

Featured Services

Quick Links

IDA Home

Tucson, AZ


Palomar Observatory

On Light Pollution


City of San Diego

Municipal Code


San Diego County

Lighting Regulations

Calendar of Events

Julian StarFest 2019

Public Star Party

Speakers, Exhibits, Camping

Raffle, & More!

August 1 - 3, 2019

Menghini Winery 

Julian, CA


Julian Natural Wonderfest

August 3, 2019

Jess Martin Park

Julian, CA

Support IDA

 Your support helps preserve and protect our night environment.  You'll receive a sunscription to Nightscape, discounts on IDA materials, news updates, local chapter information , and more!   

Join Today!