Important Announcement

In July 2018, SMCAS switched it's email communications to a member only mailing list using  SMCAS Members will need to accept the invitation to continue receiving SMCAS emails.  There is also now a separate mailing list SMCASNews on GroupsIO that is open to non-members. It has info on events open to the public. operates the same as Yahoo Groups.  Emails received from the SMCAS  or SMCASNews accounts will have 'SMCAS' or SMCASNews prefacing the Subject line of notes. also has a user interface that will allow you to set your preferences on how you wish to receive emails, eg individual emails, daily digests.   You will be able to send emails to where they will be reviewed by moderators, and then sent only to SMCAS members on    Similarly, members and non-members can send to SMCASNews.

If you are an active member, you should have received an invitation from   If you are a member and have not received an invitation to join, please email to have an invitation sent.

If your SMCAS membership is not current, or you are not a member, but had been receiving emails from our SMCAS Yahoo group and wish to continue receiving email from SMCAS, please consider renewing or becoming an SMCAS member. You can easily join via our website at:

All SMCAS members and any interested non-members should join the SMCASNews@groupsIO mailing list   Contact Ed Pieret at for information on joining this group. 

SMCAS is a registered charity with the Amazon Smile program.   This program donates 0.5% of your Amazon purchases to SMCAS at no charge to you.   To register, access Amazon at and search/select San Mateo County Astronomical Society as your charity.   Then just start doing your Amazon shopping under the Smile program - it's easy, and will help SMCAS!