Long Beach Stargazing & Astronomy Report

Light pollution and stargazing locations near Long Beach

City
Long Beach
Country
United States
Latitude
33.7701
Longitude
-118.1937

Key Sky Quality Metrics

SQM (mag/arcsec²)
17.23
Bortle class
Class 9 (Class 9)
Darkness Quotient
17%
Dataset
March 2026

Inner city sky

Stargazing in Long Beach

Long Beach is a major Pacific coast city in Southern California, part of the wider Los Angeles urban region and known for its busy waterfront, dense development and strongly urban character.

The city generally experiences Extreme Light Pollution, with a Darkness Quotient of just 17% — placing it among the more light-polluted urban skies in the United States.

For practical observing from within the city, the strongest targets are the Moon, planets, double stars and the brightest open clusters. Fainter deep-sky objects are heavily 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, but there is a clear improvement with a drive out of the city. The nearest reasonable step up is around 50 kilometres to the south-south-west, near Los Angeles County, California, where conditions reach Bortle 4, and still darker skies lie roughly 100 kilometres out in the same general direction.

The map shows Long Beach embedded in a broad, intense urban light dome, with the brightest core rendered in pale pinks and whites and surrounded by a thick halo of red, orange and yellow. In practical terms, that means the city is not just bright in its centre: its glow spills widely into the surrounding region.

The clearest darkening appears away from the main urban mass, especially out over the open water to the west and in more distant areas toward the south and south-west, where colours fade through green and blue into much darker tones. By contrast, much of the land to the north, north-east and east remains tangled with other bright patches, suggesting that urban brightness extends well beyond Long Beach itself.

Compared with its surroundings, Long Beach sits within one of the more intensely illuminated parts of the map rather than on the edge of darkness. The best escape routes are therefore the ones that move decisively away from the continuous metropolitan glow, rather than simply crossing into the next suburb.

How the sky looks from the city

Looking straight up from Long Beach, the sky is heavily brightened by artificial light, and the darker background needed for rich naked-eye observing is largely missing. Familiar constellations can still be traced, but they tend to appear thinned out, with only the brighter stars standing out clearly.

The strongest loss is in low-contrast detail: the Milky Way is effectively overwhelmed, and many deep-sky targets that are easy from darker locations simply merge into the background. For casual urban astronomy, this means bright, high-contrast objects give the most satisfying results.

A fisheye-style view would show a broad light dome in most directions rather than one isolated patch of glow. Even overhead, the sky does not fully escape the wider illumination of the surrounding conurbation.

north - poor

At around 15 kilometres north of Long Beach, the sky is still very bright, in Bortle 9 territory, so only the brightest stars and planets hold up well. Much darker skies are reachable much farther out, with genuinely dark conditions appearing only at about 200 kilometres in this direction.

north-north-east - poor

At around 15 kilometres north-north-east, conditions are still poor, with a Bortle 9 sky dominated by urban glow. The picture improves gradually, but genuinely dark skies do not arrive until about 200 kilometres out.

north-east - poor

At around 15 kilometres to the north-east, the sky remains firmly urban at Bortle 9, so expectations should stay modest. A worthwhile improvement comes only with a long journey, with dark skies appearing at roughly 200 kilometres.

east-north-east - poor

Around 15 kilometres east-north-east of the city, the sky is still poor for astronomy, again sitting at Bortle 9. It takes a substantial journey in this direction before truly dark conditions show up, at about 200 kilometres.

east - poor

At roughly 15 kilometres east, the sky is still heavily light-polluted at Bortle 9. Conditions do improve with distance and become reasonably good by around 200 kilometres, but genuinely dark skies are not reached within the sampled range in this direction.

east-south-east - poor

Around 15 kilometres east-south-east, the sky is still poor, with Bortle 8 conditions rather than anything close to dark. There is some improvement farther out, but genuinely dark skies only appear at about 200 kilometres in this direction.

south-east - poor

At around 15 kilometres south-east, the sky improves slightly to Bortle 7, but it is still strongly affected by light pollution. It gets better farther out, yet genuinely dark skies are not reached within the sampled radius in this direction.

south-south-east - marginal

Around 15 kilometres south-south-east of Long Beach, the sky is already noticeably better than the city centre, at Bortle 6, though still far from dark. A more serious improvement arrives farther out, with genuinely dark conditions appearing at about 200 kilometres.

south - marginal

At roughly 15 kilometres south, the sky is marginal at Bortle 6, giving a modest improvement over the city itself. This direction strengthens quite well, with genuinely dark skies appearing by about 100 kilometres.

south-south-west - marginal

Around 15 kilometres south-south-west, the sky is also marginal at Bortle 6, but it improves more quickly than most directions. Good dark-sky conditions arrive by about 100 kilometres, making this one of the more promising routes out of the city.

south-west - poor

At around 15 kilometres south-west, the sky sits at Bortle 7, still bright but clearly better than central Long Beach. A much stronger improvement comes farther out, with genuinely dark skies appearing at about 100 kilometres.

west-south-west - poor

At roughly 15 kilometres west-south-west, the sky is Bortle 7, so brighter constellations and planets remain the most rewarding targets. This direction improves well with distance, reaching genuinely dark conditions at about 100 kilometres.

west - poor

At around 15 kilometres west, the sky remains poor at Bortle 8, with strong background glow still present. It does improve farther out, and genuinely dark skies appear by about 100 kilometres in this direction.

west-north-west - poor

Around 15 kilometres west-north-west of the city, the sky is still poor at Bortle 9. There is improvement farther out, but genuinely dark conditions do not arrive until about 200 kilometres.

north-west - poor

At roughly 15 kilometres north-west, the sky remains poor, with Bortle 9 conditions still dominating. Much darker skies are possible, but only after a long journey of about 200 kilometres.

north-north-west - poor

At around 15 kilometres north-north-west, the sky is still very bright at Bortle 9. Although there is some improvement farther out, genuinely dark skies are not reached within the sampled radius in this direction.

zenith - poor

Looking straight up from Long Beach, the zenith is still a Bortle 9 sky with an SQM reading of 17.23, so the background never becomes properly dark. You can still pick out the main constellation patterns and brighter stars, but the sky looks washed out, and the Milky Way is effectively lost from view.

  • Near Los Angeles County, California
    Direction
    SSW
    Distance (km)
    101.3
    SQM
    21.63
    Bortle
    3

    Milky Way visible, broadband DSO imaging

  • Near Los Angeles County, California
    Direction
    SSW
    Distance (km)
    48.8
    SQM
    20.88
    Bortle
    4

    Bright nebulae, galaxies, narrowband imaging

  • Near Kern County, California
    Direction
    S
    Distance (km)
    122
    SQM
    20.85
    Bortle
    4

    Bright nebulae, galaxies, narrowband imaging

Genuinely dark skies require a deliberate trip from Long Beach rather than a quick hop to the edge of town. The nearest reasonable dark-sky improvement is around 50 kilometres to the south-south-west near Los Angeles County, California, where skies reach Bortle 4, while a stronger step into dark-sky territory appears about 100 kilometres out in the same direction.

The south and south-western directions improve more quickly than most others. Many other directions stay heavily affected by metropolitan glow for a long stretch before conditions become truly worthwhile.

  • Within 50 km
    Place
    Near Los Angeles County, California
    Direction
    SSW
    Distance (km)
    48.8
    SQM
    20.88
    Bortle
    4
  • Within 200 km
    Place
    Near Los Angeles County, California
    Direction
    SSW
    Distance (km)
    101.3
    SQM
    21.63
    Bortle
    3

Long-term trend

Long Beach's night sky has been broadly stable over the long term, with a slight improvement in measured darkness. The earliest reading in the series was 17.16 SQM, while the latest stands at 17.23 SQM.

Across 76 datasets, the mean value is 17.31 SQM, with readings ranging from 17.07 to 17.70 SQM. The overall trend is small rather than dramatic, so for an observer on the ground the city still behaves very much like a brightly lit inner urban sky.

In other words, there is no sign here of a major transformation in observing conditions. Long Beach remains a place where astronomy is possible, but mainly for bright targets unless you are prepared to travel.

From within Long Beach, the best astronomy is centred on bright, punchy targets that can stand up to a bright background sky. The Moon and planets are the obvious highlights, while double stars and a handful of bright open clusters can still give pleasing views.

A few showpiece deep-sky objects remain possible, especially with optical aid and careful observing technique, but they are compromised by the glow. Bright nebulae such as M42 and the brightest globular clusters are more realistic than faint galaxies or diffuse nebulae.

For the Milky Way, richer deep-sky observing and better meteor watching, a darker site outside the city makes a dramatic difference. Long Beach is very much a case where travelling unlocks a completely different sky.

  • 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 Long Beach?

Yes — you can still see stars from Long Beach, but the view is strongly reduced by light pollution. The brighter stars and main constellation outlines are visible, while many fainter stars are washed out.

Can you see the Milky Way from Long Beach?

For most observers within the city, no. With an SQM of 17.23 and a Bortle 9 sky, the Milky Way is effectively overwhelmed by urban skyglow.

What Bortle class is Long Beach?

Long Beach is Bortle Class 9, which corresponds to an inner-city sky. In practical terms, that means a very bright night sky with deep-sky observing heavily limited.

What is the SQM reading in Long Beach?

The measured sky brightness is 17.23 SQM. That is typical of a heavily light-polluted urban environment rather than a dark observing site.

Where are the nearest darker skies from Long Beach?

The nearest reasonable darker skies in the supplied locations are around 50 kilometres to the south-south-west, near Los Angeles County, California, where conditions reach Bortle 4. A darker step again appears about 100 kilometres out in the same general direction.

Is Long Beach good for astrophotography?

It can work for lunar, planetary and some narrow-field bright-target astrophotography, but it is not ideal for wide-field deep-sky imaging from within the city. For nebulae, galaxies and richer night-sky landscapes, a darker site will give far better results.

How far do you need to drive from Long Beach for dark skies?

For a reasonable improvement, you are looking at about 50 kilometres to reach Bortle 4 conditions near Los Angeles County, California. For genuinely dark skies, the most promising routes are roughly 100 kilometres to the south or south-south-west.