Caelo

Your sky's quiet lookout — honest, even when it's "not tonight." Caelo knows your sky because you mapped it: the trees, the fence line, the roof next door, whatever actually stands between you and a clear shot of the night sky. Caelo Pro puts that horizon to work everywhere it matters. Open your Observing Plan and every recommendation already accounts for your yard. Not a generic transit time off a star chart, but the real window: when a target clears your roof, and when it drops behind next door's oak tree. A flat-horizon planner can't do that. Pro plans your night, not a generic one. Pro also shows you further ahead: This Week lays out seven nights of visibility at a glance, and This Year shows the whole season a target climbs through your sky, so you can plan around months instead of guessing at them. Caelo would rather tell you "not tonight" than send you out for nothing.