HOW TO FIND A
DARK-SKY SITE.

Light-pollution maps are the first filter

A light-pollution map can reveal darker regions, but it cannot show every local lamp, blocked entrance or unsafe roadside. Use it to shortlist areas, then confirm the exact observing point with current maps and local rules.

Distance from a city is not the only factor. A ridge may block a light dome, while one unshielded lamp can ruin dark adaptation at an otherwise remote site.

Match the horizon to the target

• For a rising Moon or low eclipse, check the exact azimuth and choose an unobstructed horizon.
• For meteors, favour the broadest possible view rather than a narrow gap between trees.
• For deep-sky observing, position bright towns behind you or behind natural terrain.
• Confirm that gates, car parks and trails remain legally accessible at the required hour.

Check Moon and weather together

Cloud cover is decisive, but transparency also matters. Humidity, smoke, dust and haze can brighten the sky and reduce contrast even when a forecast says clear.

A bright Moon can be useful for a landscape but damaging for faint galaxies and meteors. Check its phase, rise and set times, then schedule the darkest part of the night.

Make the visit safe and repeatable

• Arrive in daylight to inspect the ground, exits and horizon.
• Tell someone where you are going and avoid isolated sites alone.
• Bring warm layers, water, a charged phone and offline directions.
• Use a dim red light, leave no trace and respect nearby residents and wildlife.