Season planner
Visibility Calendar
When each target sits well in your dark sky — week by week, across the season. Cells weigh observable hours above 30° during astronomical darkness, discounted by the moon.
Example data
| Target · 12 weeks | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
No targets yet Add a target above, or seed a list with Popular / Less common. | ||||||||||||
Depth Easy Moderate Challenging Extreme
VisibilityExcellent (4h+)6 7Good (2–4h)Marginal—Not visible
darker header = new-moon week
Site: Rim Rock Ridge · 34.21°, -116.94° · min altitude 30° · hover any cell for the night's numbers.