Kingston Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.66

Bortle class

Class 8 (Class 8)

Darkness Quotient

29%

Dataset

April 2026

City sky

Kingston: The Practical Verdict

Kingston, located in Ontario, Canada, is a small city experiencing significant urban lighting. This results in a sky rated as having high light pollution, which largely compromises deep-sky observation. Stargazing opportunities in the city are mostly limited to the brightest targets.

Under Kingston's bright sky, the Moon, planets, and notable bright stars are the most practical targets. Double stars and solar system events are also feasible with moderate equipment and careful planning. Deep-sky objects, such as galaxies and nebulae, are severely subdued by the urban light, making detailed observational astronomy ineffective from within the city.

For those seeking better skies, the Town of Hannibal in New York lies around 105 km south, offering significantly darker conditions rated at Bortle 4. This makes it a valuable escape for dedicated observers aiming to view more elusive celestial objects.

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

Town of Hannibal, New York sits about 106 km south and reaches Bortle 4, roughly 11x darker.

Good dark window

Kingston'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 Kingston?

No. Kingston is a Bortle Class 8 sky with SQM 18.66, 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 Kingston?

Kingston is Bortle Class 8 (SQM 18.66), a poor city sky for astronomy.

Is Kingston good for stargazing?

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

Is Kingston good for astrophotography?

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

What can you observe from Kingston?

Primary targets from Kingston 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 Kingston?

The closest meaningfully darker mapped site is Rideau Lakes, Ontario, about 50 km north north east of Kingston, reaching Bortle 5.

When is the sky darkest in Kingston?

The sky over Kingston is darkest around January, December.

Is light pollution in Kingston getting better or worse?

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

• Rideau Lakes, Ontario

  Direction

  NNE

  Distance (km)

  49.5

  SQM

  20.53

  Bortle

  5

• Wayne County, New York

  Direction

  SSW

  Distance (km)

  72.9

  SQM

  21.15

  Bortle

  4

• Town of Hannibal, New York

  Direction

  S

  Distance (km)

  105.5

  SQM

  21.27

  Bortle

  4

• Central Ontario, Ontario

  Direction

  WSW

  Distance (km)

  103.2

  SQM

  20.98

  Bortle

  4

• Town of Kirkland, New York

  Direction

  SSE

  Distance (km)

  160

  SQM

  21.00

  Bortle

  4