Are you ready to take your astronomical interest to the next level? Welcome!
The Rittenhouse Astronomical Society is the astronomy club for everyone.
 Join us on the second Wednesday of each month September through June at the Franklin Institute.
Check out recent guest speakers.    Consider meeting with others who share an interest in astronomy!    
Wondering what is in the sky this month? Bring your questions, and your enthusiasm to learn. Open to all with no admittance fee.
  Free, informative ,enlightening and fun.  No obligation to join.


~What's new on the Society Website~

Join us at the Franklin Institute for

Our  December 13, 2017 Meeting 7:00 PM
where the public is invited to attend free of charge.
David Brown
JPL / Longtime RAS Member
Meeting Notice

Our Society, Past & Future
Refurbishing an Edmund 6

Upcoming Special Event,
Special Guest Speaker, Special Date,

Dr. Robert Nemiroff 
Michigan Technical University

January 6, 2018
William Tennant High School~ Planetarium
Centennial School District
(Note special location and meeting date

Save the date: Ticketed Event
Meeting Notice Tickets Now Available

Creator & editor of one of the internet's first hyperlinked educational tools relative to all levels of learning. 

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

Credit & Copyright: Elana Kestrel (Dreamcircle)

Robert Nemiroff will join us for a return engagement to address members, guests and the general public. This special event is open to all who are interested, students are encouraged to attend.  Dr. Nemiroff will review the past year of astronomical highlights.

A service of:
NASA Astro-Science Division
Goddard Space Flight Center

Michigan Technical University

To prepare you may want to take an on line course by Dr. Nemiroff on You-Tube
Beginners - Introductory Astronomy
The PhysicsX's Channel


For you future planning,
some adjustments to our schedule: 
2018 we change our meeting night
 to Third Tuesday of the Month
At the Franklin Institute

January 23  (Tuesday)  Franklin Institute
February  20 (Tuesday) Franklin Institute
March 20 (Tuesday) Franklin Institute
April 17 (Tuesday) Franklin Institute
May 15 (Tuesday) Franklin Institute
June 19 (Tuesday) Franklin Institute



Our  PAST November 8, 2017

Your  Light Pollution Defense Kit

Diane Turnshek -
Dept. of Physics at Carnegie Mellon University / Physics and Astronomy at University of Pittsburgh 

See her in action with her recent TED Talk
[ Meeting Notice ]


Our Guest speakers voluntarily step forward in community service to address our membership and the interested scientific community at the Franklin Institute. 
Please consider to support their endeavors in return.  Both our September and October Speakers have new publications you may be interested in
(The Solstice Season Approaches!)





Muddy Run

Holtwood PA
NASA Night Sky Network

Next Open House
November 18




We conduct our business at our monthly meetings. 
If you have questions about our Society you can contact us at:

Although we have no secretaries standing  by,
volunteer officers have access to this mail box.
and will check periodically throughout the summer months..

Our Summer Newsletter 2017:



☼ Check out some recent guest speakers and Events.



We share articles submitted by our members on or about the Cross Quarter day of each season.  If members have nothing to say, newsletter is held till articles are submitted.  Any member is welcome to submit an article for our newsletter.


Winter 2016-17

Summer 2016

Winter 2015-16

Summer 2015

 Winter 2014-15

Fall 2014

Summer 2014

Spring 2014


 Previously on this past orbit: 






If I am visiting, where do I park?

Parking in the Franklin Institute garage (entrance on 21st street) is most convenient.  
We cannot validate parking after hours and the full rate is in effect.

Street parking is fairly abundant at meeting time since many are leaving the city.
The yellow areas highlighted below have meter parking in effect till 8:00 pm.
It is more affordable to pay for the 1 hour meter fee if you arrive at 7:00 pm. 
The spots highlighted are within view of the Franklin and are a short easy walk.

How do I enter the building if it is after museum hours?
Employee entrance shown on map is always open. 
There is a security official sitting just inside the door.
If you park in the garage, you enter through the Atrium.
Information desk or security will direct you to the meeting location.



Learn More about David Rittenhouse
Back to What's New on our Website

Last Updated  12-10-17
Rittenhouse Astronomical Society By-Laws

We are a Non-Profit Organization
Contact the Webmaster

Return to Rittenhouse Astronomical Society- Home Page