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.
Benefits include:
- 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.
Student membership
Starts at $15/month — use the “Enter amount” field on any membership form.
Ways to join / donate

Sustaining membership
Monthly
Your sustaining membership enables IDA to put your recurring gifts toward our fight to protect and restore the night.

Annual membership
Annual
Pay your annual dues with option to make recurring for upcoming years.

Planned Giving
Join the Dark Sky Defender Society to ensure that future generations will know the natural night sky.

Constellation Circle
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.
Privacy
DarkSky does not share our members’ personal information outside of the organization for any reason without your explicit permission. If there is a DarkSky chapter in your area, a qualified chapter leader may contact you about local activities and volunteer opportunities. For more info, read our Privacy Policy.
Tax info
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.
Contact us
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!