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


Star Party & Imaging Conference

Speakers, Premium Workshop, 

Dark Skies, & More! 

October 24-27, 2019

Palm Canyon Hotel & RV Resort

 Borrego Springs CA

Shooting for the Stars!

International Dark-Sky Association

2019 Annual General Meeting

November 8 & 9, 2019

Tucson, AZ

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!