Citizen Sky is now officially permanent part of the AAVSO. In the coming weeks we will be moving additional content to the AAVSO site and freezing this site as an archive of the 1st three years of the project. Please visit the new landing page for future updates.

You can contribute to the understanding of the universe that we all share.

Help us solve the mystery of epsilon Aurigae, a star that has baffled scientists since 1821. You don’t need any prior scientific training— we will give you all of the tools you need to become a citizen scientist*.

Everyone, regardless of science background, can play a role in the Citizen Sky Project… discover yours!  Get involved and you can do things like:

Learn about Astronomy Observe Stars Collaborate
Create Theories Study Data Publish Papers
*Citizen scientists are volunteers, many of whom have no prior scientific training, who work with trained scientific researchers to answer real-world questions. This means YOU!

Recent News

Submitted by Dr.Bob on April 2, 2013 - 11:18pm

Be sure to visit the website for JAAVSO vol. 40 #2, Dec. 2012 - a compilation of reports based on Citizen Sky activities: .
Thanks again to everyone who contributed data, observational reports, ideas and artwork!...

Submitted by Rebecca on December 10, 2012 - 8:14pm

We are thrilled to announce that Citizen Sky has a new permanent home at the AAVSO!

Now that the epsilon Aurigae eclipse is over and the special, eps Aur issue of the JAAVSO is being published, Citizen Sky has a new mission -- more than one in fact!  Citizen Sky will be the new home...

Submitted by Rebecca on April 23, 2012 - 12:36pm

We've had a blast so far during Astro-April!

In the last couple of weeks we have presented 5 online talks on various astronomical subjects.  (If you missed any of them, recordings are posted on the main Astro-April page.)  The speakers have been engaging, the...

Submitted by Rebecca on April 17, 2012 - 10:32am

Many thanks to Dr. John Martin for his svery informative online talk yesterday on Supernova Impostors! (Video has been posted.)

TODAY, April 17th at 3:00pm Eastern: Dr. Steve Howell will speak about his work with NASA's Kepler Mission.  Click here to register...

Submitted by Rebecca on April 12, 2012 - 3:45pm

Many thanks to AAS Executive Officer, Dr. Kevin Marvel for a wonderful online talk yesterday!  The recording will be posted on the main Astro-April page shortly.

Dr. Bob will joined us on Friday, April 13 at 11am Eastern for an Astro-April...

Submitted by Rebecca on April 11, 2012 - 4:40pm

We have two very interesting online talks scheduled this week as a part of Citizen Sky's Astro-April:

1. Join us TODAY, Thursday, April 12 at 2pm Eastern Time for an online talk with Dr. Kevin Marvel. Kevin is a former AAVSO vice...

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