When to look for Jupiter

Cerro Tololo Observatory · 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

Similar windows — choose by weather, not a tiny timing difference.

13 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.

Computed with Astronomy Engine at roughly 20-minute intervals. No claim of opposition, weather probability or measured seeing is implied.