Stargazing in Conceicao do Lago-Acu, Maranhão, Brazil

Dark-sky rating for Conceicao do Lago-Acu

Conceicao do Lago-Acu, Maranhão, Brazil is a small town (population about 14,915). A place this size typically has a rural sky: the Milky Way is usually visible on clear, moonless nights away from local lighting. That is an estimate of Bortle class 1–4 from population, not a measurement: the real value depends on the exact spot you observe from.

For a measured reading at any point, open the live Dark Sky map.

Nearest dark-sky places and observatories

No certified dark-sky place or observatory in our registry lies within 150 km of Conceicao do Lago-Acu. Our list only includes genuine, publicly documented sites, so none is shown rather than guessed.

Milky Way season in Conceicao do Lago-Acu

The bright core of the Milky Way climbs high above the horizon haze. It climbs at least 20° above the horizon during astronomical darkness in February, March, April, May, June, July, August, September, October, peaking in April at about 65°.

• The south celestial pole stands 3.8° above the horizon, so stars within 4° of it never set from here.
• About 53.3% of the whole sky rises above the horizon at some point in the year from this latitude.
• The Milky Way's core in Sagittarius culminates about 64.8° up, clearing the horizon haze comfortably.
• The Large Magellanic Cloud only reaches about 24.1° altitude, so it is a low, seasonal target rather than a year-round one.
• At 8 m elevation, roughly 0% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.

Tonight and aurora

As of November 6, 2026 (UTC) the Moon is a Waning Crescent at 8% illumination. Aurora at 3.8° latitude generally needs about Kp 9.0.