Pueblo Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

19.29

Bortle class

Class 7 (Class 7)

Darkness Quotient

37%

Dataset

August 2026

Suburban/urban transition

Pueblo: The Practical Verdict

Pueblo, a small city in the state of Colorado, offers a night sky heavily impacted by high light pollution, categorised as a suburban or urban transition zone. For amateur astronomers, this means overall sky quality is poor for professional-grade stargazing. However, the lack of significant astronomical darkness shouldn't deter you entirely; bright targets like the Moon and planets remain visible even in these conditions.

While the Milky Way remains entirely out of reach from Pueblo, certain objects are still worth observing. Bright open clusters, double stars, and narrowband imaging with careful processing can yield rewarding views, although visual deep-sky observing is severely limited. The brightest section of the sky lies towards the north-west, so directing your observations towards the cleaner south-east sky can improve your experience.

If your ambitions stretch to more challenging targets, a trip to Harding County, New Mexico to the south is well worth considering, and can transform your observing opportunities, given its much darker Bortle 3 skies.

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

Harding County, New Mexico 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 El Paso County, Colorado, 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.

• El Paso County, Colorado

  Direction

  NE

  Distance (km)

  87.1

  SQM

  20.81

  Bortle

  4

• Harding County, New Mexico

  Direction

  S

  Distance (km)

  267.8

  SQM

  21.69

  Bortle

  3

• 14605, Texas

  Direction

  SE

  Distance (km)

  254.5

  SQM

  21.51

  Bortle

  3