Live conditions and a session planner for Cape Cod, MA - a suggested plan around tonight's best nebulae, galaxies, and star clusters, or build your own; moon path, moonrise and a 7-night moon outlook; cloud, seeing, dew, fog and rain forecasts; live satellite and radar; Bortle sky quality; and visibility charts for every target
Tick the targets you want to shoot tonight. The chart builds as you go and is remembered on this device.
Pick a target to highlight it across every chart below.
How many targets are in each quality tier per hour tonight — taller green bars mean more excellent targets available at that hour. The ★ marks the best hour to be imaging. Highlight a target to see which tier it falls into each hour.
Angular distance between each target and the moon throughout the night. Below 15° (red band) is unusable; below 30° (orange) is risky for faint targets. Highlight a target to see its closest approach and hourly values.
All targets currently above the horizon — labeled dots are tonight's best picks. The dashed ring marks the 15° imaging floor. North is up, East is right.
Altitude over time for all visible targets — updates when you toggle the treeline or scope filter. The dashed pink line marks the 10° imaging floor; blue shading is astronomical dark.
Anything you add shows up here and in every chart, and is remembered on this device.