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

NIGHTFALL 2019

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!