Super Blue Moon captured over Sark

by John Hunt on a Sony DSC-QX30 attached to an iPhone SE

31st January 2018

This website is the property of SAstroS (Sark Astronomy Society)

Header image of Sark by starlight ©Sue Daly Productions

Website designed and maintained by Sark I.T. Support on behalf of SAstroS


Sark Astronomy Society


The world's first designated

Dark Sky Island

About Sark

Sark is a small island, fourth largest of the Channel Islands, in the south-western English Channel off the coast of Normandy, France. It forms part of the Bailiwick of Guernsey and has a population of about 600.

About Us

In January 2011 Sark gained International Dark-Sky Association recognition for its exceptional quality of unpolluted darkness, and became the first functioning island community to gain the title of Dark Sky Island. It was during this time that the Sark Astronomy Society (SAstroS) was formed by a band of enthusiastic stargazers eager to share the wonders of Sark's magical night time display with others.

Contact SAstroS

Chair, aka Starfleet Commander

Annie Dachinger

Deputy Chair:

Richard Axton

Membership enquiries:

Jo Birch (Treasurer)


Reg Guille

Postal address:


La Closette,


Channel Islands GY10 1SD

Enquiries & Observatory Bookings

Sark Visitor Centre

Telephone: (+44) 01481 832345

Upcoming Events

The Society hosts annual Starfest celebrations - the first having occurred in October 2011. They generally occur in the autumn or spring to mark both the beginning or end of winter.


During our Starfests we have welcomed a variety of guest speakers:


Professor Andrew Coates - Head of Planetary Science, Mullard Space Science Laboratory

Dr Marek Kukula - Public Astronomer, Greenwich Royal Observatory

Professor Chris Lintott - Oxford University and presenter of BBC The Sky at Night

Bob Bower FRAS

David Le Conte - (ex NASA) FRAS

Dr Kukula enjoyed his first visit so much he has returned several times, most recently in October 2014. Our guest speakers always give inspiring and entertaining talks.

Steve (darkskyman) Owens

Dr Paul Fellowes FRAS

During the weekend 19-21 July 2019

SAstroS is celebrating the 50th Anniversary of the


Please join us and our guest speaker Bob Bower FRAS


Friday 19th July

7pm               Supper with Bob in the Island Hall

8pm              Film showing “First Man” (2018) starring

                      Ryan Gosling as Neil Armstrong *

10pm             Viewing session with Bob at Observatory

Saturday 20th July

50th Anniversary of first man on the Moon

5.30-6.30pm  Talk by guest speaker/astronomer Bob Bower

                      “A History of Observing the Moon” *

6.30-7.30pm  Supper

8-10pm          Film of “Apollo 13” starring Tom Hanks *

10.30pm        Viewing the Moon and planets. Session led

                      by Bob Bower at Observatory

Sunday 21st July

9.30pm          Night observation with Bob


* The talk and films will be in the Board Room at the Hall


Please note that ALL are welcome, not just SAstroS members.

On the 50th anniversary Saturday we hope to observe the Sea of Tranquillity where Armstrong first set his foot ...

one small step for all humanity.

 Events are free of charge, but donations gratefully received.