Dublin Stargazing & Astronomy Report

Light pollution and stargazing locations near Dublin

City
Dublin
Country
Ireland
Latitude
53.3498
Longitude
-6.2603

Key Sky Quality Metrics

SQM (mag/arcsec²)
17.48
Bortle class
Class 9 (Class 9)
Darkness Quotient
19%
Dataset
August 2026

Inner city sky

Dublin: The Practical Verdict

Dublin is a major city in the Leinster region of Ireland. The severe urban sky here means stargazing is limited mostly to the brightest celestial bodies. Extreme light pollution is the primary limiting factor, making serious deep-sky observing effectively impossible.

From within Dublin, the Milky Way is completely out of sight. Your best targets under these conditions are the Moon, visible planets, and bright stars, where light pollution has a lesser effect. Narrowband imaging can still be attempted with care, but most broad-sky targets like galaxies and faint nebulae should be avoided.

For a significant improvement in sky quality, head to Ballaugh, about 155 km to the north-east. This site offers a darker atmosphere with more feasible stargazing opportunities.

At a Glance

Overall
Severe urban sky - This is a severely light-polluted urban sky. Only the Moon, planets, bright stars, and a few specialist targets remain practical.
Milky Way
Not visible - The Milky Way is not visible from this sky.
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
Ballaugh sits about 154 km north east and reaches Bortle 3, roughly 48x darker.
Moderate dark window
Dublin's limiting factor is not only light pollution. Around midsummer, Dublin loses true astronomical darkness entirely, so deep-sky observing and imaging are strongly seasonal. Plan serious sessions around the darker months.

Frequently Asked Questions

Can you see the Milky Way from Dublin?

No. Dublin is a Bortle Class 9 sky with SQM 17.48, 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 Dublin?

Dublin is Bortle Class 9 (SQM 17.48), a severe urban sky for astronomy.

Is Dublin good for stargazing?

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

Is Dublin good for astrophotography?

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

What can you observe from Dublin?

Primary targets from Dublin 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 Dublin?

The closest meaningfully darker mapped site is Richardstown, about 18 km east north east of Dublin, reaching Bortle 7.

When is the sky darkest in Dublin?

The sky over Dublin is darkest around January, December. Significant summer limitation: around 76 nights per year have no true astronomical darkness.

Is light pollution in Dublin getting better or worse?

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

north - fair

A trace of skyglow near the north horizon. Stars are clear throughout this direction except very close to the ground.

north-north-east - fair

Faint glow on the north-north-east horizon. Most stars are visible to low elevation; only the faintest near the ground are affected.

north-east - good

The north-east sky is dark to the horizon. Faint targets are accessible at all elevations here.

east-north-east - good

Dark sky in the east-north-east direction with no obvious skyglow. Suitable for faint-object work at low elevation.

east - good

The east horizon is dark. Faint stars are visible close to the ground.

east-south-east - good

The east-south-east horizon is dark. Faint stars are visible close to the ground.

south-east - fair

Light glow detectable on the south-east horizon. The effect fades quickly with elevation and does not affect overhead work.

south-south-east - good

Dark horizon to the south-south-east. Faint stars and extended objects in this direction behave much as they do overhead.

south - good

Dark sky in the south direction with no obvious skyglow. Suitable for faint-object work at low elevation.

south-south-west - good

The south-south-west horizon is dark. Faint stars are visible close to the ground.

south-west - fair

Faint glow on the south-west horizon. Most stars are visible to low elevation; only the faintest near the ground are affected.

west-south-west - marginal

Soft skyglow visible on the west-south-west horizon. Mid-brightness stars survive at low elevation; the faintest do not.

west - fair

A trace of skyglow near the west horizon. Stars are clear throughout this direction except very close to the ground.

west-north-west - fair

A faint diffuse glow on the west-north-west horizon. Stars are visible to low elevation, with minor losses near the ground.

north-west - fair

The north-west sky is broadly dark with a small amount of glow at the horizon. Most objects in this direction are accessible.

north-north-west - good

The north-north-west sky is dark to the horizon. Faint targets are accessible at all elevations here.

zenith - poor

The zenith sky is bright. The Milky Way is absent and most constellation stars are not visible.

  • Richardstown
    Direction
    ENE
    Distance (km)
    18.1
    SQM
    19.58
    Bortle
    7
  • The Municipal District of Gorey — Kilmuckridge
    Direction
    S
    Distance (km)
    68.4
    SQM
    21.02
    Bortle
    4
  • Llangristiolus
    Direction
    E
    Distance (km)
    125.4
    SQM
    21.56
    Bortle
    3
  • Dromore
    Direction
    ENE
    Distance (km)
    120
    SQM
    20.97
    Bortle
    4
  • Mid-Ulster District
    Direction
    NNW
    Distance (km)
    137.1
    SQM
    21.30
    Bortle
    4
  • Ballaugh
    Direction
    NE
    Distance (km)
    153.7
    SQM
    21.69
    Bortle
    3