Alexandria Stargazing & Astronomy Report

Light pollution and stargazing locations near Alexandria

City
Alexandria
Country
United States
Latitude
38.8048
Longitude
-77.0469

Key Sky Quality Metrics

SQM (mag/arcsec²)
17.99
Bortle class
Class 9 (Class 9)
Darkness Quotient
23%
Dataset
March 2026

Inner city sky

Alexandria Stargazing Overview

Alexandria is a historic city in northern Virginia, closely tied to the Washington metropolitan area and known for its dense urban character along the Potomac.

The city generally experiences High Light Pollution, with a Darkness Quotient of 23% — making it brighter than many smaller American cities and closer to the heavily lit end of the scale. For practical observing from within Alexandria, the most reliable targets are the Moon, planets, double stars and the brightest open clusters. Fainter deep-sky objects are mostly washed out by the city glow, though a few showpiece objects can still be attempted with patience.

Meaningfully darker skies are not close at hand, and a proper improvement takes a substantial drive. The nearest reasonable step up is about 90 kilometres to the south, near Caroline County, Virginia, where conditions reach a much more usable level for general stargazing.

The map shows Alexandria embedded in a broad, intense urban light dome, with the brightest tones concentrated through the built-up core and spreading across much of the surrounding metropolitan area. In practical terms, that means the city is not just bright on its own — it sits inside a much larger pool of artificial skyglow.

The more promising colours appear away from the urban core, especially towards the south and south-east, where the pattern softens from harsh pinks and reds into yellows, greens and then darker blues. There are also darker patches farther afield in other directions, but they tend to be more fragmented or more distant, whereas the southward side shows a clearer route into better observing conditions.

Compared with its immediate surroundings, Alexandria is among the brighter parts of an already bright region. The map suggests that small local improvements exist on the edges of the metro glow, but genuinely satisfying stargazing requires getting well beyond that main wash of light.

What the sky overhead is like

Looking straight up from Alexandria, the zenith itself is heavily affected by urban skyglow, corresponding to an inner-city sky. Even overhead, where the sky is usually darkest, the background remains bright enough to erase much of the fainter star field.

The familiar brighter constellations still come through, but they tend to look thinned out, with many of their dimmer members missing. Instead of a richly textured sky, what you get is a smaller set of prominent stars against a pale background, with the Moon and planets standing out far more readily than deep-sky objects.

north - poor

At around 15 kilometres north of Alexandria, the sky is still poor, remaining in Bortle 9 conditions with very heavy light pollution. It does improve gradually farther out, but genuinely dark skies are not reached within the sampled range in that direction, even though conditions become much better at long distance.

north-north-east - poor

At around 15 kilometres to the north-north-east, conditions are still poor, with a Bortle 9 sky and strong metropolitan glow. This direction does brighten only slowly with distance, and genuinely dark skies are not reached within the sampled radius.

north-east - poor

At around 15 kilometres north-east of the city, the sky remains poor at Bortle 9. Even much farther out this direction never really turns into a strong dark-sky route within the sampled area, so it is one of the less promising options.

east-north-east - poor

At 15 kilometres east-north-east, the sky is still poor, though it edges into Bortle 8 rather than the worst inner-city conditions. There is some improvement with distance, but genuinely dark skies are not reached within the sample radius in this direction.

east - poor

At around 15 kilometres east, conditions are poor, with a Bortle 8 sky still strongly affected by urban light. The outlook improves markedly farther out, and genuinely dark skies are reachable at about 200 kilometres in this direction.

east-south-east - poor

At around 15 kilometres east-south-east, the sky is still poor at Bortle 8. This is a more rewarding long-range direction, though, with genuinely dark skies appearing at about 200 kilometres.

south-east - poor

At around 15 kilometres south-east of Alexandria, the sky is poor but already somewhat better than the city centre, at Bortle 7. This is one of the best escape routes from the urban glow, with genuinely dark skies available at about 100 kilometres.

south-south-east - poor

At roughly 15 kilometres south-south-east, the sky is still poor, sitting in Bortle 7 conditions. It improves usefully farther out and reaches good country-sky territory, but genuinely dark skies are not reached within the sampled radius.

south - marginal

At around 15 kilometres south, the sky improves to marginal quality, with Bortle 6 conditions. This is one of the more practical directions for a shorter stargazing drive, and farther out it reaches good dark-rural levels even though truly pristine darkness is not achieved within the sampled range.

south-south-west - poor

At around 15 kilometres south-south-west, the sky remains poor at Bortle 7. It becomes noticeably better farther out and eventually reaches good quality, though genuinely dark skies are not reached within the sampled radius.

south-west - poor

At around 15 kilometres south-west, the sky is poor, with Bortle 7 conditions still limiting faint-object work. Keep going and this direction becomes much more attractive, with genuinely dark skies reachable at about 200 kilometres.

west-south-west - poor

At around 15 kilometres west-south-west, the sky is still poor at Bortle 8. There is a worthwhile improvement farther out to good rural conditions, but genuinely dark skies are not reached within the sampled radius in this direction.

west - poor

At around 15 kilometres west, the sky remains poor, sitting in Bortle 8 conditions. This direction does eventually open into much darker country, with genuinely dark skies appearing at about 200 kilometres.

west-north-west - poor

At around 15 kilometres west-north-west, conditions are poor at Bortle 8. The sky improves only gradually at first, but a much darker destination does appear at about 200 kilometres.

north-west - poor

At around 15 kilometres north-west, the sky is still poor at Bortle 8. It becomes more usable with distance, and genuinely dark skies are reachable at about 200 kilometres in this direction.

north-north-west - poor

At around 15 kilometres north-north-west, the sky remains poor, though Bortle 8 is a slight improvement on the inner city. Farther out it reaches good rural quality, but genuinely dark skies are not reached within the sampled radius.

zenith - poor

Looking straight up from Alexandria, the zenith is poor, with a Bortle 9 inner-city sky and an SQM of 17.99. The brightest constellations are still recognisable, but the background sky is bright, faint stars are lost, and the overall impression is of a strong urban light dome rather than a naturally dark overhead sky.

  • Near Richmond County, Virginia
    Direction
    SSE
    Distance (km)
    111.1
    SQM
    21.17
    Bortle
    4

    Bright nebulae, galaxies, narrowband imaging

  • Near West Perry Township, Pennsylvania
    Direction
    E
    Distance (km)
    211
    SQM
    21.04
    Bortle
    4

    Bright nebulae, galaxies, narrowband imaging

  • Near Caroline County, Virginia
    Direction
    S
    Distance (km)
    89.4
    SQM
    20.93
    Bortle
    4

    Bright nebulae, galaxies, narrowband imaging

Genuinely dark skies require a meaningful journey from Alexandria rather than a quick hop out of town.

The nearest worthwhile step-change is about 90 kilometres to the south, near Caroline County, Virginia, where the sky improves to Bortle 4 territory. If you continue farther, the south-south-east and south-east sectors remain among the more rewarding directions for escaping the metropolitan glow.

  • Within 100 km
    Place
    Near Caroline County, Virginia
    Direction
    S
    Distance (km)
    89.4
    SQM
    20.93
    Bortle
    4
  • Within 200 km
    Place
    Near Richmond County, Virginia
    Direction
    SSE
    Distance (km)
    111.1
    SQM
    21.17
    Bortle
    4
  • Within 500 km
    Place
    Near West Perry Township, Pennsylvania
    Direction
    E
    Distance (km)
    211
    SQM
    21.04
    Bortle
    4

Long-term brightness trend

Alexandria's sky brightness has been fairly stable over the long term, with a slight improvement in the measurements. The record runs from 2012 to 2026, with SQM values ranging from 17.63 to 18.25 and a long-term average of 17.95.

The latest reading of 17.99 is a little darker than the earliest value of 17.81, and the trend slope points to a modest gradual improvement over time. In real observing terms, though, this is still an intensely light-polluted urban sky, so the practical experience remains dominated by city glow.

From within Alexandria, bright and high-contrast targets are the sensible choice. The Moon, planets, double stars and the brightest open clusters cope best with the strong background glow.

A few showpiece deep-sky objects can still be attempted, especially bright nebulae such as M42 and the brightest globular clusters, but they will lack the contrast they show under darker skies. For the Milky Way, faint galaxies, broad nebulae and richer meteor displays, a proper trip out of the city makes a dramatic difference.

  • Moon
  • planets
  • double stars
  • brightest open clusters
  • bright nebulae such as M42
  • the brightest globular clusters
  • Milky Way
  • faint galaxies
  • broadband nebulae
  • meteor showers

Can you see stars from Alexandria?

Yes — you can still see stars from Alexandria, but mostly the brighter ones. The familiar main patterns of the constellations are visible, though many of the fainter stars between them are lost in the urban glow.

Can you see the Milky Way from Alexandria?

For most observers, no. With a Bortle 9 sky and SQM 17.99, the Milky Way is effectively washed out from within the city.

What Bortle class is Alexandria?

Alexandria is Bortle Class 9, which is an inner-city sky. That is the bright end of the scale and strongly limits deep-sky observing.

What is the SQM in Alexandria?

The measured sky brightness is 17.99 SQM. In plain terms, that indicates a very bright urban night sky rather than a naturally dark one.

Where are the nearest darker skies?

The nearest strong improvement in the supplied locations is about 90 kilometres to the south, near Caroline County, Virginia, where conditions reach Bortle 4. Another good option lies about 110 kilometres to the south-south-east near Richmond County, Virginia.

Is Alexandria good for astrophotography?

It can work for lunar, planetary and narrow-field imaging of bright targets, but it is difficult for wide-field deep-sky astrophotography from within the city. For nebulae, galaxies and Milky Way work, darker skies outside Alexandria are far more suitable.

How far do you need to drive from Alexandria for better stargazing?

For a clearly noticeable improvement, you will usually want to leave the immediate metropolitan glow behind and head roughly 90 kilometres or more. Around that distance to the south, conditions improve to Bortle 4, which is a far better starting point for general stargazing.