Richmond Hill Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

18.14

Bortle class

Class 8 (Class 8)

Darkness Quotient

24%

Dataset

August 2026

City sky

Richmond Hill: The Practical Verdict

Richmond Hill is a small city in Ontario with suburban settings and a population of around 200,000. Unfortunately, as a stargazing location, it offers a poor city sky due to high light pollution levels. The Milky Way is not visible from here, swallowed by the bright urban glow.

While deep-sky observations are limited, you can still enjoy the Moon, planets, and bright stars. Double stars and solar system events are also pleasing targets. However, attempts at viewing broadband galaxies or faint nebulae will mostly be in vain due to the overpowering city light.

For those seeking darker sites, the Town of Nunda in New York, about 195 km south-east, offers a measurable improvement, with Bortle 4 skies. Although it requires a longer drive, it is worth the effort for serious deep-sky observation.

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 Nunda, New York sits about 196 km south east and reaches Bortle 4, roughly 13x darker.

Good dark window

Richmond Hill'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 Richmond Hill?

No. Richmond Hill is a Bortle Class 8 sky with SQM 18.14, 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 Richmond Hill?

Richmond Hill is Bortle Class 8 (SQM 18.14), a poor city sky for astronomy.

Is Richmond Hill good for stargazing?

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

Is Richmond Hill good for astrophotography?

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

What can you observe from Richmond Hill?

Primary targets from Richmond Hill 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 Richmond Hill?

The closest meaningfully darker mapped site is Village of Wilson, New York, about 81 km south east of Richmond Hill, reaching Bortle 6.

When is the sky darkest in Richmond Hill?

The sky over Richmond Hill is darkest around January, December.

Is light pollution in Richmond Hill getting better or worse?

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

• Village of Wilson, New York

  Direction

  SE

  Distance (km)

  81.4

  SQM

  20.26

  Bortle

  6

• Orleans County, New York

  Direction

  ESE

  Distance (km)

  102.9

  SQM

  20.09

  Bortle

  6

• Town of Nunda, New York

  Direction

  SE

  Distance (km)

  195.7

  SQM

  20.94

  Bortle

  4