Blackett Observatory

Blackett Observatory

Marlborough College, Marlborough, Wiltshire, SN8 1PA

Set within the private grounds of Marlborough College is the fabulous Blackett Observatory. It is home to an incredible 10″ Cooke refractor steeped in history that offers stunning views of the Cosmos! Observing is organised by the observatory’s enthusiastic Director, Gavin James.

The observatory is not often open to the public; however, the facility is accessible to those outside the College interested in Astronomy. For example, you can become a ‘Friend of the Marlborough telescope‘, which costs just a few pounds per year, and in return, you will be given access to their stargazing events diary, arrange private visits and attend regular lectures at the College.


Location events organiser

Blackett Observatory

Blackett Observatory organises events at this location

Please contact Blackett Observatory directly with any enquiries relating to visiting this location


Weather forecast

  • 12/04/24

    15° 0%
  • 12/04/24

    12° 4%
  • 13/04/24

    11° 8%
  • 13/04/24

    10° 8%

Weather forecast for Marlborough (0.7 miles away) updated 12/04/24 at 12:00.




Forthcoming events

Below is a list of events at Blackett Observatory. View these events on our calendar, add them to your calendar or Google Calendar.

  • Friends of the Marlborough Telescope observing session

    Sunday 14th April 2024 from 21:00pm to 23:00pm

    Blackett Observatory, Marlborough, SN8 1PA

    More info
  • Friends of the Marlborough Telescope solar observing session

    Thursday 23rd May 2024 from 14:30pm to 16:30pm

    Blackett Observatory, Marlborough, SN8 1PA

    More info
  • Friends of the Marlborough Telescope observing session

    Thursday 20th June 2024 from 22:00pm to Friday 21st June 2024 00:00am

    Blackett Observatory, Marlborough, SN8 1PA

    More info
  • Friends of the Marlborough Telescope observing session (Perseids)

    Monday 12th August 2024 from 22:00pm to Tuesday 13th August 2024 00:00am

    Blackett Observatory, Marlborough, SN8 1PA

    More info

Stay and gaze nearby

Stay at one of these stargazing-friendly accommodation providers.

  • DreamAcres – Cranborne Chase

    Coombe Bissett, Salisbury, Wiltshire, SP5 4LP (28.8 miles away)

    Stay & Gaze

    More info