Rule number one

La Palma’s streetlights are (for the most part) dark sky friendly: amber-colored, shielded to the ground, and not overly bright. However, the simplest rule to avoid light pollution is to only illuminate what and when needed. Or simply: Don’t illuminate at all when nobody needs light. Continue reading

Astronomical viewpoints, brightly illuminated

One of La Palma’s astronomical attractions is a network of 14 astronomical viewpoints. They are distributed across the island and are equipped with information panels: Some explain constellations, others the planets, the Moon, or other aspects of astronomy. Each one also has a sign that points to Polaris, the northern star. Continue reading