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Stargazing guide

Stargazing in Quilmes, Buenos Aires, Argentina

Quilmes, Buenos Aires, Argentina has an estimated Bortle 5–6 sky (mid-sized city). The Milky Way core is highest after dark in April, at about 84°.

How dark the sky is around Quilmes, Buenos Aires, Argentina, the nearest certified dark-sky places, when the Milky Way core is visible, and the next dark New Moon. Calculated for -34.72°, -58.25°.

Estimated sky glow

Bortle 5–6
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Milky Way core

April
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Next New Moon

November 9, 2026
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Dark-sky rating for Quilmes

Quilmes, Buenos Aires, Argentina is a mid-sized city (population about 262,379). A place this size typically has a bright suburban sky: main constellations are easy, the Milky Way is washed out. That is an estimate of Bortle class 5–6 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 Quilmes. Our list only includes genuine, publicly documented sites, so none is shown rather than guessed.

Milky Way season in Quilmes

The bright core of the Milky Way passes almost directly overhead. 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 84°.

  • The south celestial pole stands 34.7° above the horizon, so stars within 35° of it never set from here.
  • About 78.5% 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 84.3° up, passing almost directly overhead.
  • The Large and Small Magellanic Clouds are circumpolar here — visible on any clear, dark night of the year.
  • At 24 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 October 16, 2026 (UTC) the Moon is a Waxing Crescent at 32% illumination. Aurora at 34.7° latitude generally needs about Kp 9.0.

Nearby places

Stargazing in Quilmes: common questions

Is Quilmes a good place for stargazing?

Quilmes, Buenos Aires, Argentina is a mid-sized city, so its typical sky is bright suburban sky: main constellations are easy, the Milky Way is washed out (an estimate of Bortle 5–6 from population, not a measurement). No certified dark-sky place or observatory in our registry lies within 150 km, so a dark site means driving away from the city's glow toward the darkest horizon you can reach.

When can you see the Milky Way from Quilmes?

From Quilmes, Buenos Aires, Argentina (-34.72°, -58.25°) the Milky Way's bright core climbs at least 20° above the horizon during astronomical darkness in February, March, April, May, June, July, August, September, October. It peaks in April, reaching about 84°. Moonlight, cloud and city lights still decide what you actually see.

What is the best night this month for stargazing near Quilmes?

The darkest nights fall around the New Moon. As of 2026-10-16 the Moon is a Waxing Crescent at 32% illumination, and the next New Moon is November 9, 2026 (UTC). Pair it with a clear forecast and a site away from town lights.