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read more » 31st Aug 2017 11:28
The Observatory Science Centre
East Sussex
BN27 1RN
Tel: 01323 832731
Fax: 01323 832741

Email Us

How to find us

Important Location Information

If you use the estate postcode in your GPS you will probably be directed to a CLOSED entrance of the Herstmonceux Castle Estate; resulting in a 15 minute re-route.

The correct OPEN entrance is from Wartling Road with the junction onto Halley Road (private road within the estate).

Co-ordinates for this entrance have been pre-programmed into the Google location map on this web site.

The Co-ordinates are:
50.868585, 0.348961

The Observatory Science Centre is within the Herstmonceux Castle Estate in East Sussex. It is 2 miles east of the village of Herstmonceux on the Boreham Street to Pevensey Road, near Wartling.

Look for brown directional tourist signs to 'Herstmonceux Castle and Science Centre'. 

Sadly there is a shortage of these signs and the Highways Agency does not permit any more to be added.  As you near The Centre, if you can spot the green, copper clad domes - or the grey, steel Isaac Newton Dome, then you are almost there!

From the north:
The most direct route is to continue south on the A22 to the large Cophall Roundabout at Polegate, just north of Eastbourne, then proceed as below (from the west).

From the west:
Travel along the A27 to Polegate, then at the Cophall Roundabout follow the A22 / A27 eastbound to Pevensey. At the Pevensey Roundabout, take the 1st exit on the left and follow the sign for Herstmonceux Castle, 3 miles along the Wartling Road.

From the east:
Travel along the A259 to the Pevensey Roundabout. Take the 4th exit and follow the sign for Herstmonceux Castle, 3 miles along the Wartling Road.

Cyclists can travel across the picturesque Pevensey Levels from Pevensey railway station. The route is very flat with only 1 hill at Wartling - journey time varies from 25 - 45 minutes depending on pedal power and wind direction!

Public Transport

In the 1950s this site was specifically chosen to be the new home of The Royal Greenwich Observatory in the midst of the Sussex countryside: away from light pollution, with the dark skies that were perfect for astronomers.

For us now operating a tourist attraction from this site does present location issues.