~ Membership ~






Membership is for one academic year which starts in September of each year.  Membership is accepted at any time during the year towards the current academic year.

We encourage current members to renew each September, when we focus our membership drive.



$ 25.00

 Basic membership includes benefits listed below



 Active Student ID qualifies regardless of age

Premium Members


For those who can express extra support!


Membership benefits:

  • The only astronomy club in Philadelphia  that meets regularly in a planetarium;  the Fels (one of the nations leading planetariums).

  • Regular access, weather permitting, at our meetings, to the  Bloom Observatory on the rooftop at the Franklin Institute (newly refurbished)!  Always a front seat view to celestial objects!

  • The location of our meetings at the Franklin Institute and our support of the Institute's activities enables us to attract an amazing professional array of guest speakers.

  • Exclusive private membership networking site (web based) to communicate with other interested members.

  • Inclusion on the RAS mailing list for our newsletter.


Abrams Planetarium- Michigan State University Campus

  • Your membership includes a subscription to the Sky Calendar from the staff of the Abrams Planetarium.  This is a monthly overview of what the beginning or casual observer  can observe in a calendar style format.  It also includes an easy to read sky map for each month.

  • All members may receive upon request a Member in Good Standing frame-worthy certificate. 

  • Premium Member certificate is printed on gold foil frame embossed paper.

  • And most importantly, you help promote astronomy education in Philadelphia and the surrounding community.

 Please submit dues by mail to our mailing address:

Rittenhouse Astronomical Society
P.O. Box 283
Feasterville, PA  19053-0283


Membership dues cover the cost of the monthly mailings, web hosting, Abrams Sky Calendar subscription, and continued promotion and support for our astronomical and science related programs.

Membership is due in September of each year.  Memberships run from September to September following the student academic year.

Nominations are always open and excepted for a position as Member-at-Large.  Executive officers are appointed biennially by the members-at-large who are eligible for office after two years of active service.


Please contact us for further information or to apply. 
Members are always welcome to get involved.  We are a volunteer organization which means the volunteers are key to the success of our

Membership Certificate Coordinator ~ Print and distribute members certificates at meetings

Meeting Reviewer ~ If you attend regularly, consider posting a review of our meetings for our website.  This position would be for an active member that attends 8 of 10 meetings each academic year.

Observatory Operators ~ The Joel Bloom observatory atop the Franklin Institute is looking for enthusiastic volunteers (some astronomy knowledge helpful) to receive training to operate the 10" Zeiss refractor and 8" Meade reflectors.  Contact Derrick Pitts-Chief Astronomer TFI



Office of Member-at-Large

Member at-Large is a two year term.  Members at-Large participate in 2 business meetings per year.  These may serve as a liaison officer between the RAS and other groups and organizations who report back to our organization items that may be of benefit.  They are also those who wish to step forward in service to our organization.  They can be nominated by members or self nominated.  Officers of the Governors board can be contacted if interested.

Purpose:   1) To enlighten the community and others about RAS   2) To gather information related to astronomy for the RAS that we can share with members and the public.





~ Membership Certificate ~

Your basic membership entitles you to a Membership Card and a Member in Good Standing Certificate. Since many display or frame their certificates, we prefer not to mail them, but will bring them to the next meeting after your request for one has been made.  Your membership card can be obtained at an RAS meeting.  Please contact any officer to request your card or to have your certificate printed.

Premium Certificate: Some members have the ability to contribute more for their yearly membership.  If you contribute $25.00 towards your yearly dues, you are entitled to a gold embossed certificate. 

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