How can I reduce light pollution at my telescope?

BBC Sky at Night Magazine's Scope Doctor Steve Richards solves your astronomy ailments.

Plain illuminated partially covered by fog, soft lights. Credit: elleon / iStock / Getty Images Plus

How can I reduce light pollution at my telescope?

Steve says: “Light pollution is a major modern-day issue for astronomers, robbing observers and astrophotographers alike of clear views of the fainter celestial objects.

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The most effective way of dealing with light pollution is to travel to a dark-sky site, usually out in the countryside away from street lighting, but this isn’t always possible, of course.

Astrophotographers can make use of special light pollution suppression filters to remove some pollution effects during post-processing.

Observers don’t have it so easy but a good ultra- high contrast (UHC) filter can help here. However, no filter will brighten a celestial object; all the filters can do is help to remove the unwanted light.”

Some more guides that might help:

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Email Steve your astronomy queries to contactus@skyatnightmagazine.com and they could be answered in a future issue of BBC Sky at Night Magazine.