About MAS

A Welcome from the President

M.A.S. is a very active and friendly club, established in January 1996. We are centred on the local government areas of Campelltown, Camden, Wollondilly and Liverpool, our activities extend across the Greater South Western region of Sydney.

Our principle activities are:

(i)   the Macarthur Astronomy Forum;
(ii)  members private observing nights; and
(iii) public outreach.

 john pub crop

You are most welcome to come along to our monthly Macarthur Astronomy Forum and hear our great guest speakers, or perhaps join us beneath a dark and starry sky when we hold our public nights. There you can take advantage of our members wide range of telescopes and their astronomical knowledge and tips.

Everyone is welcome, you don't have to have a telescope, all you need is curiosity. Let us help you see your universe in a way you thought was never possible. 

Onwards... but mostly upwards!

John Rombi 

President, Macarthur Astronomical Society



At a time of accelerating scientific research and public interest, we believe there's never been a more exciting time to be an astronomer!

We strive to build relationships with regional institutions, including traditional land owners, community leaders, local councils, schools, universities, CSIRO and NASA and we have introduced a School Mentoring Programme to assist small groups of school children who are studying astronomy.

We seek increased membership, financial growth and the technical excellence, in order to empower future acquisition of advanced astronomical equipment and property in which to house it. 


Macarthur Astronomy Forum

A regular meeting for members and visitors is held monthly at the Western Sydney University (WSU) Campbelltown Campus - full details are always posted on our "What's On" pages.

General discussion is carried out at these meetings, followed by a guest speaker, usually a distinguished amateur or professional astronomer, who will address the gathering on a topic of astronomical interest. WSU students and members of the public are very welcome to attend. The community-minded support of WSU in allowing the Society to hold our monthly general meetings on campus at Campbelltown is gratefully acknowledged.

Members Observing Nights

Regular field nights for members are held at two dark sky sites in southwest Sydney, which we call "Stargard" and "The Forest." Observing dates are listed on the "What's On" page. You will require your own transport.

Tips on observing will be shared, introductions to new aids or equipment and an opportunity to test-drive different telescopes. New members and owners of new equipment can be offered guidance and experience.


Maps indicating the location of the Macarthur Astronomy Forum and Members Observing Nights are available via the menu at the top of each page.

Public Observing Nights

Since 2000 we have held public observing nights at the UWS Rotary Observatory, in collaboration with the University of Western Sydney. We also hold public nights at The Dudley Chesham Sportsground, The Oaks.

MAS warmly welcomes all whom are interested to come along and share this great thing we call "our Universe" in all it's beauty and wonder. A gold coin donation is all that it takes!

Community Observing Nights

We are dedicated to promoting astronomical awareness to the Macarthur community and we hold special viewing nights for Schools, Scout Groups and other community groups on request. 

Section Leaders

To foster specific interests within the Society, section leaders have been appointed. If you are thinking to take up a particular aspect of Astronomy, then these people will be glad to help you. Awards for achieving observing targets and gaining experience are given by the section leaders.


The day to day running of the Society is carried out on behalf of the members by the annually elected management committee.


We are a 'not-for-profit' organisation. Our income is mainly derived from membership fees, supplemented by merchandise sales, gold coin donations and fund-raising efforts.

  • If you would like to join MAS please go to our "Join MAS" page via the menu at the top of this page.

  • If you would like to buy MAS merchandise please e-mail This email address is being protected from spambots. You need JavaScript enabled to view it..

  • If you would just like to make a donation to MAS, thanks very much, please see the payment details on our "Join MAS"page.

Our financial year begins on 1st March each year. Whilst government regulations exclude the requirement to audit the Society's accounts, our books are audited annually and the Auditor's report is included in an annual report, presented to members prior to the AGM.


You must arrange your own transport.


Announcements are made on this website and on our Facebook page. Contact between members is by e-mail and/or our Private Message system.

Contact Us

We welcome your enquiries. Please email us at This email address is being protected from spambots. You need JavaScript enabled to view it. or write to us at The Secretary, Macarthur Astronomical Society, PO Box 17, MINTO, NSW 2566.

Enquiries or comments regarding this website can be directed to This email address is being protected from spambots. You need JavaScript enabled to view it. 


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