Musician Emma Pollock will lead an evening of dark skiesthemed discussion and song.
The first Hebridean Dark Skies Festival has been announced and will take place in Lewis and Harris from February 8 to 21 next year.
The packed two-week programme features stargazing, talks, family activities, film screenings and workshops, with events at An Lanntair, Gallan Head, and the Calanais standing stones.