Belo Horizonte Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

17.88

Bortle class

Class 9 (Class 9)

Darkness Quotient

22%

Dataset

August 2026

Inner city sky

Belo Horizonte: The Practical Verdict

Belo Horizonte, a major city in the Minas Gerais region of Brazil, suffers from severe urban sky conditions. High light pollution predominantly hampers observational activities, with most interesting celestial objects obscured by the bright city lights. The Milky Way is not visible here, marking the city as a challenging location for stargazing enthusiasts.

From this urban environment, your best bets are the Moon, planets, and bright stars, though even these are best experienced only through careful planning. Double stars and solar system events can be targets of focus, but deep-sky objects are largely out of reach. To improve visibility, venturing into narrowband imaging for bright nebulae holds potential, though other imaging types may struggle against the city's radiant sky glow.

For those seeking somewhat improved skies without venturing too far, Ribeirão do Peixe, located east north-east about 75 km away, offers a modest upgrade in conditions, moving from a Bortle 9 inner city sky to a Bortle 5 setting.

At a Glance

Overall

Severe urban sky - This is a severely light-polluted urban sky. Only the Moon, planets, bright stars, and a few specialist targets remain practical.

Milky Way

Not visible - The Milky Way is not visible from this sky.

Best targets from here

Moon, planets, bright stars, double stars, solar system events, narrowband imaging only with care

Do not prioritise

visual deep-sky observing, broadband galaxies, reflection nebulae, widefield Milky Way

Limited nearby upgrade

Ribeirão do Peixe, Minas Gerais is the strongest nearby option but remains Bortle 5; the improvement is real but modest.

Good dark window

Belo Horizonte retains astronomical darkness throughout the year, so seasonality is less extreme than at higher latitudes. The main limitation is light pollution, not the length of the dark window.

Frequently Asked Questions

Can you see the Milky Way from Belo Horizonte?

No. Belo Horizonte is a Bortle Class 9 sky with SQM 17.88, so the Milky Way is not visible from the city. For Milky Way photography, look for a Bortle 4 or darker site.

What Bortle class is Belo Horizonte?

Belo Horizonte is Bortle Class 9 (SQM 17.88), a severe urban sky for astronomy.

Is Belo Horizonte good for stargazing?

Not for serious deep-sky observing. Belo Horizonte is a severe urban sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.

Is Belo Horizonte good for astrophotography?

Broadband deep-sky imaging is heavily compromised from Belo Horizonte and a Bortle 4 or darker site is strongly recommended. Even narrowband imaging is difficult from Belo Horizonte without careful processing.

What can you observe from Belo Horizonte?

Primary targets from Belo Horizonte include Moon, planets, bright stars, double stars, solar system events. Targets such as visual deep-sky observing, broadband galaxies, reflection nebulae are not realistic from this sky.

Where are darker skies near Belo Horizonte?

The closest meaningfully darker mapped site is Condomínio Estância das Amendoeiras, Minas Gerais, about 26 km east south east of Belo Horizonte, reaching Bortle 7.

When is the sky darkest in Belo Horizonte?

The sky over Belo Horizonte is darkest around June, July.

Is light pollution in Belo Horizonte getting better or worse?

Long-term light pollution over Belo Horizonte has been broadly stable across the available measurements.

• Condomínio Estância das Amendoeiras, Minas Gerais

  Direction

  ESE

  Distance (km)

  26.3

  SQM

  19.26

  Bortle

  7

• Ribeirão do Peixe, Minas Gerais

  Direction

  ENE

  Distance (km)

  73.1

  SQM

  20.47

  Bortle

  5

• Jaboticatubas, Minas Gerais

  Direction

  NE

  Distance (km)

  69

  SQM

  20.30

  Bortle

  5

• Itapecerica, Minas Gerais

  Direction

  WSW

  Distance (km)

  122.1

  SQM

  20.54

  Bortle

  5

• Piraúba, Minas Gerais

  Direction

  SSE

  Distance (km)

  171

  SQM

  20.69

  Bortle

  5

• São Vicente de Minas, Minas Gerais

  Direction

  SSW

  Distance (km)

  204.6

  SQM

  20.70

  Bortle

  5