Become a member
Your donation to the worldwide dark sky movement supports education, outreach, advocacy, and so much more. We rely on our members, with 73% of our annual budget coming from individual contributions.
- Welcome packet with goodies!
- Association and collaboration opportunities with your local chapter.
- Timely and relevant dark sky news.
- Quarterly Nightscape magazine.
- Access to educational brochures and resources.
- Discounts on merchandise in our online store.
- Opportunities to join online events.
Starts at $15/month — use the “Enter amount” field on any membership form.
Ways to join / donate
Your sustaining membership enables IDA to put your recurring gifts toward our fight to protect and restore the night.
Pay your annual dues with option to make recurring for upcoming years.
Make a non-recurring gift.
Join the Dark Sky Defender Society to ensure that future generations will know the natural night sky.
For information, please contact [email protected], tel 1-520-347-6360.
For individuals or organizations who commit to making an annual gift to IDA of $1,000 or more. Contact [email protected] for more information.
How your money is spent
To review our financials and annual reports, see the Funding page.
Your membership contribution is tax-deductible in the United States, as allowed by law. DarkSky is a tax exempt 501(c)(3) organization, registered in the state of Arizona. Our EIN is 74-2493011.
If you have any questions about membership or donations that aren’t covered here, please read the membership FAQ or contact us.
New payment processor
We’re making many upgrades to our online membership capabilities, and the first one is already launched. We’ve changed our donation processor — so the donation and membership forms linked from this page may look a little different.
We hope you find it easy to use!