To become a member of the CERN Astronomy Club, please contact Matthias Haase . CERN clubs are open to everybody, so even if you are not working at CERN you can become member of our club. 

Yearly membership fee 40 CHF
Juniors (< 20) 30 CHF
Temporary members (duration < 3 months) - summer students, other cases to be decided by the committee 15 CHF

New members can join at any moment during the year. The membership fee is 40 CHF from 1st of January until 31st of December and 30 CHF from 1st of July until 31st of December.