How many nights will it take?

Plan sessions from frame counts, target integration goals, or full multi-channel projects — with dark-hour estimates and weather-adjusted schedules.

Inputs

Planning Mode

Sub-exposure Length (seconds)

Number of Light Frames

Frames Already Captured

Overhead per Frame (seconds) Download, dither, settle time

Hours Available per Night

Number of Planned Nights

Clear Night Probability (%) Your area's typical clear-sky rate. Leave blank to skip.

Results

Adjust the inputs to see results.

Integration = subs × exposure. SNR ∝ √(integration time). Calendar nights = imaging nights / clear probability.

All formulas verified by automated tests.