Cedar Rapids Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.03

Bortle class

Class 8 (Class 8)

Darkness Quotient

23%

Dataset

May 2026

City sky

Cedar Rapids: The Practical Verdict

Cedar Rapids, located in the mid-sized city ambit of Iowa, is significantly affected by high light pollution. As such, the overall sky quality is poor for astronomical observation, with the Milky Way completely invisible to the naked eye. The southern horizon experiences the most light intrusion, further diminishing celestial clarity.

From within Cedar Rapids, stargazers are mostly limited to observing brighter objects such as the Moon, planets, and prominent stars or double stars. Narrowband imaging requires caution due to the significant urban skyglow which also hampers broader observational efforts. Deep-sky enthusiasts will find limited success with reflection nebulae and faint galaxies.

For those willing to travel, a significantly darker site, 355th Street in Iowa, lies north-north-east, about 85 km away. This location offers a notable improvement in sky quality, making it worthwhile for those serious about deep-sky astronomy.

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

355th Street, Iowa sits about 84 km north north east and reaches Bortle 4, roughly 16x darker.

Good dark window

Cedar Rapids'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 Cedar Rapids?

No. Cedar Rapids is a Bortle Class 8 sky with SQM 18.03, 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 Cedar Rapids?

Cedar Rapids is Bortle Class 8 (SQM 18.03), a poor city sky for astronomy.

Is Cedar Rapids good for stargazing?

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

Is Cedar Rapids good for astrophotography?

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

What can you observe from Cedar Rapids?

Primary targets from Cedar Rapids 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 Cedar Rapids?

The closest meaningfully darker mapped site is 2061, Iowa, about 61 km east south east of Cedar Rapids, reaching Bortle 5.

When is the sky darkest in Cedar Rapids?

The sky over Cedar Rapids is darkest around January, December.

Is light pollution in Cedar Rapids getting better or worse?

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

• 2061, Iowa

  Direction

  ESE

  Distance (km)

  60.9

  SQM

  20.80

  Bortle

  5

• 355th Street, Iowa

  Direction

  NNE

  Distance (km)

  84.1

  SQM

  21.03

  Bortle

  4

• Round Grove, Illinois

  Direction

  E

  Distance (km)

  149.9

  SQM

  20.83

  Bortle

  4

• Town of Wayne, Wisconsin

  Direction

  ENE

  Distance (km)

  156.4

  SQM

  20.58

  Bortle

  5

• Newburg Township, Iowa

  Direction

  NNW

  Distance (km)

  187

  SQM

  20.85

  Bortle

  4