Dealing with Light Trespass

By Chetna Misra

Light trespass—the unwelcome spill of artificial light into spaces where it’s neither needed nor desired—has become a growing concern for those who cherish the nocturnal environment. As a symptom of light pollution, light trespass not only diminishes the beauty of dark skies but also disrupts ecosystems, affects human well-being, and highlights the consequences of poorly designed lighting systems.

Understanding Light Trespass

On pp. 13 and 352, the Alberta Star Party is at A Stones Throw campground, near Milo, Alberta.
50°35′Ν, 112°49′W, elev 921 m (3,021 ft)

On pp. 99 and 101, the Jupiter moons diagram is incorrect. Use the PDFs provided below.

On p. 103, the entry for Wed., Mar. 12 at 1:18 is incorrect - delete.

On p. 105, the second footnote should be #2.

On p. 132, the table re: Partial Eclipse of 2025 Mar 29, needs updating to incorporate DST, see below.

On p. 181, the minutes values in the table are incorrect. Use the tables from the links below.