Sydney Observatory is located at the top of Observatory Hill in the middle of the park. The street address is Watson Road, Observatory Hill, Millers Point.

Telephone enquiries and bookings
To make a booking or ask a question phone (+61 2) 9921 3485.

Online bookings
Online bookings are available for night telescope sessions, some special events and some astronomy courses.

Postal address
The postal address for correspondence is Sydney Observatory, PO Box K346, Haymarket, NSW 1238, Australia.

Email enquiries
Please use the form below to email an enquiry or enquire about availability of day & night tours. Emails will be responded to within 48 hours (Monday to Friday only).

If you are enquiring about an upcoming astronomical event you may wish to check the Sydney Observatory blog where staff regularly address current astronomical news.