Pueblo Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

19.29

Bortle class

Class 7 (Class 7)

Darkness Quotient

37%

Dataset

July 2026

Suburban/urban transition

Pueblo: The Practical Verdict

Pueblo, located in the United States, is a small city characterised by suburban environments. Unfortunately, the sky here is considerably affected by light pollution, providing a poor urban/suburban sky for stargazing. The greatest challenge is the visibility of the Milky Way, which is not realistically possible from within this city due to high light pollution levels.

From these conditions, the Moon, planets, and bright double stars are the most visible objects. Bright open clusters and narrowband imaging also remain viable with meticulous effort. However, visual deep-sky observing, broadband galaxies, and any Milky Way-related photography should be avoided due to visibility constraints.

For those seeking significantly darker skies, a drive south around 270 km offers a much improved environment for deep-sky observations, reaching a Bortle 3 quality sky. This option is worth considering for more serious night-time exploration.

At a Glance

Overall

Poor urban/suburban sky - This is a poor sky for astronomy. The Moon, planets, and a few bright objects remain viable, but deep-sky work is difficult.

Milky Way

Not visible - The Milky Way is not realistically visible from this level of light pollution.

Best targets from here

Moon, planets, bright double stars, bright open clusters, narrowband imaging with careful processing

Do not prioritise

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

Best nearby upgrade

268 km S sits about 268 km south and reaches Bortle 3, roughly 9.1x darker.

Good dark window

Pueblo's longest dark windows fall in December and January, with the shortest nights around June and July. Plan deep-sky sessions around the autumn and winter months for the best combination of long nights and true astronomical darkness.

Frequently Asked Questions

Can you see the Milky Way from Pueblo?

No. Pueblo is a Bortle Class 7 sky with SQM 19.29, 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 Pueblo?

Pueblo is Bortle Class 7 (SQM 19.29), a poor urban/suburban sky for astronomy.

Is Pueblo good for stargazing?

Not for serious deep-sky observing. Pueblo is a poor urban/suburban sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.

Is Pueblo good for astrophotography?

Broadband deep-sky imaging is heavily compromised from Pueblo and a Bortle 4 or darker site is strongly recommended. Narrowband imaging of bright emission nebulae remains viable from Pueblo with appropriate Ha or OIII filters.

What can you observe from Pueblo?

Primary targets from Pueblo include Moon, planets, bright double stars, bright open clusters, narrowband imaging with careful processing. Targets such as visual deep-sky observing, broadband galaxies, reflection nebulae are not realistic from this sky.

Where are darker skies near Pueblo?

The closest meaningfully darker mapped site is 87 km NE, about 87 km north east of Pueblo, reaching Bortle 4.

When is the sky darkest in Pueblo?

The sky over Pueblo is darkest around January, December.

Is light pollution in Pueblo getting better or worse?

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

• 87 km NE

  Direction

  NE

  Distance (km)

  87.1

  SQM

  20.81

  Bortle

  4

• 268 km S

  Direction

  S

  Distance (km)

  267.8

  SQM

  21.69

  Bortle

  3

• 255 km SE

  Direction

  SE

  Distance (km)

  254.5

  SQM

  21.51

  Bortle

  3