CMHASD is a very friendly and active society. It provides access to a wide range of astronomical expertise within the Society and makes it accessible for all ages and abilities. A varied programme of high quality lectures on astronomy is provided as well as observing sessions, society evenings, trips and public outreach. The Society’s observatory is located in a dark and safe location at which schools and clubs are welcome to visit by prior arrangement.


We meet every Thursday (except Christmas week), our meetings are split between professional lectures (usually 22 per year), Observing evenings and Society Nights, where members can tell the rest of the society what they have been up to.
Our lectures come in a variety of subjects related to Astronomy, from Historical stories to the latest research, our lecturers are usually professional astronomers or very well respected amateurs.

All lectures are arranged in advance and a programme of events is available throughout the year.

We have four types of evening and membership depends on the type of evenings you want to attend. We do not stop any member from attending any evening but if the evening is not included in your membership then there is an additional fee to pay on the night. All evenings start at 19:45 unless otherwise stated and the programme shows the type of evening.

Society Night

These usually take the form of updates and lecturers from other members but if clear we observe. Open to all members.

Informal Activity Night

These evenings are less structured than a society night and range from observing & practical sessions, to running experiments, taking measurements, archiving material or general social evening. Open to all members

Professional Lectures

A 90 minute lecture from professional astronomer, space industry expert or nationally/globally recognised amateur astronomers (i.e the best in their field). Open to Full & Student Membership

Public evenings

Open to anyone.

A Charitable Incorporated Organisation

Crayford Manor House Astronomical Society Dartford is a charitable incorporated organisation (CIO). Registered Charity Number 1156678.


Our constitution is available from the following link CMHASD CIO Constitution 10Apr14

And Finally…

On a non-astronomical matter, it has been the custom since before memory, for members to retire to the pub on the Thursday evening after a lecture or meeting. A special scheme of recording drinks consumed and drinks paid for ensures that equality and harmony prevails.