10 Oct
8.7h above 20°
20:40–05:20
Highest sampled altitude 47° at 00:40
Owen Sound · next 30 nights. Times when the planet is at least 20° above the horizon during astronomical darkness.
These are position calculations, not visibility guarantees. Planets can also be observed in twilight; this planner deliberately selects darker windows. Clouds, haze, steady air and local obstructions still matter. A telescope is needed for planetary detail.
Check the next week’s weather → · Milky Way planner · Weekend planner
Longest sampled dark-time window: 8.7h on 10 Oct.
10 nights are within one 20-minute sample of the longest window. These are timing opportunities, not a best-weather ranking. All 30 nights are listed below.
8.7h above 20°
20:40–05:20
Highest sampled altitude 47° at 00:40
8.3h above 20°
20:40–05:00
Highest sampled altitude 47° at 00:40
8.3h above 20°
20:40–05:00
Highest sampled altitude 47° at 00:40
8.3h above 20°
20:40–05:00
Highest sampled altitude 47° at 00:40
8.7h above 20°
20:20–05:00
Highest sampled altitude 47° at 00:40
8.3h above 20°
20:20–04:40
Highest sampled altitude 47° at 00:20
Computed with Astronomy Engine at roughly 20-minute intervals. No claim of opposition, weather probability or measured seeing is implied.