Olathe Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.45

Bortle class

Class 8 (Class 8)

Darkness Quotient

27%

Dataset

July 2026

City sky

Olathe: The Practical Verdict

Olathe, a small city in Kansas, experiences high light pollution due in part to its suburban character and proximity to Kansas City about 30 km to the north-east. The overall sky quality here is poor for astronomy, with bright urban skies erasing any chance of viewing the Milky Way. As a result, only the Moon, planets, and a handful of bright stars and double stars offer reliable targets.

From Olathe, visual deep-sky observing is practically impossible, and attempts to observe most meteor showers will be disappointing. However, solar system events and narrowband imaging are still feasible with care. If you're determined to experience darker skies, consider heading to W Road, Kansas, about 140 km north-west, where you can enjoy significantly improved conditions for deep-sky observation under a Bortle 4 sky.

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

W Road, Kansas sits about 141 km north west and reaches Bortle 4, roughly 13x darker.

Good dark window

Olathe'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 Olathe?

No. Olathe is a Bortle Class 8 sky with SQM 18.45, 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 Olathe?

Olathe is Bortle Class 8 (SQM 18.45), a poor city sky for astronomy.

Is Olathe good for stargazing?

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

Is Olathe good for astrophotography?

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

What can you observe from Olathe?

Primary targets from Olathe 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 Olathe?

The closest meaningfully darker mapped site is Platte County, Missouri, about 67 km east south east of Olathe, reaching Bortle 6.

When is the sky darkest in Olathe?

The sky over Olathe is darkest around January, December.

Is light pollution in Olathe getting better or worse?

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

• Platte County, Missouri

  Direction

  ESE

  Distance (km)

  66.9

  SQM

  19.96

  Bortle

  6

• W Road, Kansas

  Direction

  NW

  Distance (km)

  140.6

  SQM

  21.25

  Bortle

  4

• Road 300, Kansas

  Direction

  W

  Distance (km)

  136.2

  SQM

  20.84

  Bortle

  4

• Greenwood County, Kansas

  Direction

  SW

  Distance (km)

  149.8

  SQM

  20.95

  Bortle

  4