Astrophotography filters can transform your deep-sky captures, especially when battling light pollution. Narrowband, broadband, and multi-band options each suit different targets and camera setups.

- Lagoon Nebula (M8) is an emission nebula in Sagittarius.

Even if you’re new to astronomy, you can zero in on nebulae, star clusters, and galaxies. Here are some observing tips to help you get started. You’ll find additional techniques in this magazine’s 100 ...