Aurora Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.51

Bortle class

Class 8 (Class 8)

Darkness Quotient

28%

Dataset

April 2026

City sky

Aurora: The Practical Verdict

Aurora is a mid-sized suburban city situated east of Denver, and its stargazing potential suffers greatly from the significant urban light pollution that envelops the area. The overall sky quality can only be described as poor for astronomy, with the Milky Way entirely absent and low-surface-brightness objects effectively erased.

Observing targets from Aurora primarily focus on bright objects like the Moon and planets, alongside visual doubles and bright star clusters. Narrowband astrophotography with careful techniques may yield some results for emission nebulae, but serious deep-sky observing is impractical due to the overwhelming skyglow. The western horizon is particularly compromised by the light dome of nearby Denver, while the east-south-east offers a slightly cleaner sky.

For a significant improvement in night-sky quality, it is worth venturing to the darker sky sites around 275 km east. These locations offer excellent conditions for deep-sky astrophotography or visual observation under Bortle 3 skies.

At a Glance

Overall

Poor city sky - This is a poor city sky. The Milky Way is not visible and most deep-sky observing is unrealistic from the location itself.

Milky Way

Not visible - The Milky Way is erased by the bright urban sky background.

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

Best nearby upgrade

277 km E sits about 277 km east and reaches Bortle 3, roughly 19x darker.

Good dark window

Aurora'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 Aurora?

No. Aurora is a Bortle Class 8 sky with SQM 18.51, 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 Aurora?

Aurora is Bortle Class 8 (SQM 18.51), a poor city sky for astronomy.

Is Aurora good for stargazing?

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

Is Aurora good for astrophotography?

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

What can you observe from Aurora?

Primary targets from Aurora 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 Aurora?

The closest meaningfully darker mapped site is 267 km SE, about 267 km south east of Aurora, reaching Bortle 3.

When is the sky darkest in Aurora?

The sky over Aurora is darkest around January, December.

Is light pollution in Aurora getting better or worse?

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

• 277 km E

  Direction

  E

  Distance (km)

  277

  SQM

  21.68

  Bortle

  3

• 267 km SE

  Direction

  SE

  Distance (km)

  266.7

  SQM

  21.32

  Bortle

  3

• Ough, Nebraska

  Direction

  ENE

  Distance (km)

  289.4

  SQM

  21.47

  Bortle

  3