You can join the Guild via this online site for a minimum of $25, with further giving levels, and their associated benefits, extending through cumulative giving to $2,500. At this level, friends of the Vatican Observatory are invited to join the Circles of Giving in which special recognition is afforded.

• All friends giving $25 or more will receive a Vatican Observatory Calendar, two newsletters a year, and notices of local presentations by Observatory Staff.
• Friends giving $100 - $499 will also receive a CD or videotape of a recent presentation given by Father Coyne.
• Friends giving $499 - $999 will receive a framed picture of a celestial object from the Vatican Observatory Calendar.
• Friends donating $1,000 or more will be invited to attend the Observatory's annual weekend celebration in Tucson AZ, at the end of February, in addition to the gifts listed above.
• Friends donating $2,500 or more are invited to join the Observatory's Circle of Giving program.