The Target Charts answer the planning question that matters most: when is this target actually worth imaging from my site, with my filters?
Reading the Chart #
For each night across the season the chart shows the target’s altitude arc, the dark hours, and – most importantly – the recommended exposure band: the green region marking time the scheduler would genuinely use for this target.
Why the Green Band Is Trustworthy #
The band is not a simple altitude cutoff – it is produced by running the actual scheduling engine night by night, with your constraints, horizon, and per-filter moon rules applied. If your narrowband filters tolerate moonlight but LRGB does not, the chart reflects exactly that, filter tier by filter tier.
Moon Interference #
Bright-moon periods appear as a red band. Combined with per-filter moon profiles this tells you which weeks favor narrowband work on the target and which are prime broadband windows.
Seasonal Planning #
Scan the season at a glance: when the usable time per night peaks, when the target season ends, and roughly how many nights a project needs. This is the panel to consult before committing a rig to a new target.