Any member of the AAS may become a member of the Solar Physics Division (SPD) by adding the SPD dues to the regular annual AAS dues payment. The SPD dues are currently $15. Note that the SPD offers free membership to students.
If you are an Emeritus member of the AAS then you can join the SPD when you renew your AAS status each year.
If you are not a member of the AAS, then we encourage you to join. Affiliate Membership is available under certain conditions that are described below, and does not require AAS membership.
The full description of conditions for membership are given in the Division bylaws.