Dark Window

Go / no go for deep sky

Deep-sky targets for astrophotography

A guide to every deep-sky target in the catalog: when each one is best placed, how big it is, what focal length and filter suit it, and how high it climbs from your latitude. Tap a target, then check tonight from your own location.

// What to shoot by month

// Filter by tonight or by your gear

150 targets

Open the Dark Window planner for tonight’s GO / NO-GO verdict.