Barranquilla Stargazing & Astronomy Report
Light pollution and stargazing locations near Barranquilla
- City
- Barranquilla
- Country
- Colombia
- Latitude
- 10.9639
- Longitude
- -74.7964
Key Sky Quality Metrics
- SQM (mag/arcsec²)
- 17.67
- Bortle class
- Class 9 (Class 9)
- Darkness Quotient
- 20%
- Dataset
- March 2026
Inner city sky
Stargazing in Barranquilla
Barranquilla is a major Caribbean port city in northern Colombia, known for its lively coastal character and its importance as one of the country’s principal urban centres.
The city generally experiences Extreme Light Pollution, with a Darkness Quotient of 20% — placing it among the more light-polluted urban skies in the region.
In practical terms, the most realistic targets from within the city are the Moon, bright planets, double stars and the brightest open clusters. Fainter deep-sky objects are heavily washed out by the urban glow, with only a few showpiece objects managing to stand out at all.
Meaningfully darker skies are available, but not right on the doorstep. The nearest reasonable step up is about 50 kilometres to the east-south-east near El Retén, Magdalena, with similarly improved conditions also available to the south-west near Luruaco, Atlántico.
The map shows Barranquilla as a strong, concentrated light dome surrounded by an extensive halo of elevated skyglow. The brightest urban core stands out clearly against the surrounding landscape, with the glow spreading well beyond the city itself and softening only gradually.
Away from the core, the darkest-looking regions appear mainly over the sea to the north and in more distant inland directions where the bright colours break up into smaller, more isolated patches. Even so, there are plenty of secondary light sources scattered around the wider area, so the improvement is uneven rather than immediate.
Overall, Barranquilla is much brighter than its surroundings, but the map also suggests that the city’s influence drops away noticeably once you get beyond the main urban belt. That fits the observing picture quite well: the city centre is very bright, while a moderate drive can bring a substantial improvement.
What the sky overhead is like
Looking straight up from Barranquilla, the sky is heavily affected by urban lighting. With a zenith reading of SQM 17.67, the overhead view is bright enough that the background never becomes truly black, and contrast on faint objects is poor.
In practice, the brightest star patterns are still visible, but the sky lacks the richness you would expect from a darker site. Constellations can look thinned out, and the Milky Way is effectively lost against the glow.
For casual skywatching this still leaves the Moon and planets looking good, but for deep-sky observing the zenith itself is already bright enough to be a major limitation.
north - marginal
About 15 kilometres north of Barranquilla, the sky is still only marginal, at roughly Bortle 6, so urban glow remains obvious. The encouraging part is that this direction improves strongly, with genuinely dark skies reached at around 50 kilometres.
north-north-east - marginal
Around 15 kilometres to the north-north-east, conditions are marginal at Bortle 6 rather than truly dark. Keep going farther in the same direction and the sky improves markedly, with dark conditions appearing at about 50 kilometres.
north-east - marginal
At around 15 kilometres to the north-east, the sky is still marginal, around Bortle 6, so brighter targets remain the sensible choice. This route does improve well, but genuinely dark skies take longer to reach, at about 100 kilometres.
east-north-east - marginal
Fifteen kilometres east-north-east of the city, conditions are marginal at about Bortle 6. There is a steady improvement farther out, though genuinely dark skies in this direction are only reached at around 200 kilometres.
east - marginal
Around 15 kilometres east of Barranquilla, the sky remains marginal at Bortle 6, with noticeable skyglow. Farther out the view improves substantially, and genuinely dark skies are reached at about 100 kilometres.
east-south-east - marginal
At roughly 15 kilometres east-south-east, conditions are still marginal, around Bortle 6. This is one of the more practical improving directions, with dark skies reached at about 100 kilometres and good skies appearing sooner than that.
south-east - marginal
About 15 kilometres to the south-east, the sky is still marginal at Bortle 6. The improvement is strong in this direction, with genuinely dark skies reached at around 50 kilometres.
south-south-east - poor
Around 15 kilometres south-south-east of the city, conditions are poor at about Bortle 7, so the light dome still dominates. Even so, this direction improves well with distance, reaching genuinely dark skies at about 100 kilometres.
south - poor
At roughly 15 kilometres due south, the sky is still poor, around Bortle 7, and faint targets remain difficult. Darker conditions do arrive farther out, with genuinely dark skies reached at about 100 kilometres.
south-south-west - poor
Fifteen kilometres to the south-south-west, the sky is poor at about Bortle 7, with strong residual glow from the city. Conditions improve to useful levels farther out, but genuinely dark skies are not reached within the sampled distance in this direction.
south-west - poor
Around 15 kilometres south-west of Barranquilla, the sky is still poor at Bortle 7. There is some improvement with distance, but the route is uneven, and genuinely dark skies only appear much farther out at around 200 kilometres.
west-south-west - marginal
At about 15 kilometres west-south-west, conditions are marginal, around Bortle 6, so brighter objects are still the best fit. This direction becomes much better farther out, though genuinely dark skies are only reached at around 200 kilometres.
west - marginal
Around 15 kilometres west of the city, the sky is marginal at Bortle 6 rather than truly dark. The improvement is fairly strong, with genuinely dark skies reached at about 50 kilometres.
west-north-west - poor
Fifteen kilometres west-north-west of Barranquilla, conditions are poor at about Bortle 7. The good news is that this direction improves quickly beyond the near glow, with genuinely dark skies appearing at around 50 kilometres.
north-west - marginal
At roughly 15 kilometres north-west, the sky is still marginal at Bortle 6. This is a promising direction overall, with genuinely dark skies reached at about 50 kilometres.
north-north-west - marginal
Around 15 kilometres north-north-west of the city, conditions are marginal at Bortle 6, so the sky is improved but still not truly dark. Continue farther and the picture changes a lot, with genuinely dark skies reached at about 50 kilometres.
zenith - poor
Looking straight up from Barranquilla, the zenith is poor, corresponding to Bortle 9. The sky background is bright, familiar constellations appear thinned out, and only the brighter stars and planets stand out clearly.
-
Near Dibulla, La Guajira
- Direction
- E
- Distance (km)
- 155.5
- SQM
- 21.31
- Bortle
- 3
Milky Way visible, broadband DSO imaging
-
Near El Retén, Magdalena
- Direction
- ESE
- Distance (km)
- 48
- SQM
- 21.03
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
-
Near Luruaco, Atlántico
- Direction
- SW
- Distance (km)
- 54.2
- SQM
- 20.88
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
Genuinely dark skies are not right next to Barranquilla, but they do not require an especially long journey either.
The nearest clear step-change in sky quality is around 50 kilometres away, with Bortle 4 conditions near El Retén, Magdalena to the east-south-east; a very similar option lies about 55 kilometres to the south-west near Luruaco, Atlántico. If you are willing to travel farther, conditions improve again toward Near Dibulla, La Guajira to the east, where the skies reach Bortle 3.
-
Within 50 km
- Place
- Near El Retén, Magdalena
- Direction
- ESE
- Distance (km)
- 48
- SQM
- 21.03
- Bortle
- 4
-
Within 100 km
- Place
- Near Luruaco, Atlántico
- Direction
- SW
- Distance (km)
- 54.2
- SQM
- 20.88
- Bortle
- 4
-
Within 200 km
- Place
- Near Dibulla, La Guajira
- Direction
- E
- Distance (km)
- 155.5
- SQM
- 21.31
- Bortle
- 3
How the sky has changed over time
Barranquilla’s long-term trend is slightly brighter rather than darker. The earliest reading in the series was SQM 17.88, while the latest is SQM 17.67, a small decline in darkness over the full span of measurements.
The overall trend slope of -0.0084 SQM per year points to gradual worsening rather than a dramatic shift. In day-to-day observing terms, that means the city has remained consistently very bright, with only modest variation between the darkest and brightest readings in the record.
Across 75 datasets, values have ranged from SQM 17.67 to 18.48, with a mean of 17.93. So while conditions do fluctuate a little, the broader picture is of a persistently light-polluted urban sky.
From within Barranquilla, the best observing is centred on bright, high-contrast targets. The Moon and planets cope well with the city glow, and double stars or the brightest open clusters can still be rewarding through small and medium telescopes.
A few showpiece deep-sky objects remain possible, but with compromises. Bright nebulae such as M42 and the brightest globular clusters may be detectable when transparent conditions are good, though they will lack the structure and contrast seen from darker places.
For anything faint or expansive, a darker site makes a major difference. The Milky Way, dimmer galaxies, broad nebulae and meteor watching are all far better pursued outside the city.
- Moon
- planets
- double stars
- brightest open clusters
- bright nebulae such as M42
- brightest globular clusters
- Milky Way
- faint galaxies
- broadband nebulae
- meteor showers
Can you see stars from Barranquilla?
Yes — you can still see stars from Barranquilla, but far fewer than from a rural site. The brighter constellations and standout stars are visible, while the faint background richness is largely lost in the city glow.
Can you see the Milky Way from Barranquilla?
In normal city conditions, no. With a Bortle 9 sky and SQM 17.67 overhead, the Milky Way is effectively washed out from within Barranquilla.
What Bortle class is Barranquilla?
Barranquilla is classed as Bortle 9, which corresponds to an inner-city sky. That is the brightest end of the urban light-pollution scale.
What is the SQM reading in Barranquilla?
The measured sky brightness is SQM 17.67. In practical terms, that indicates a bright urban sky rather than a dark observing site.
Where are the nearest darker skies from Barranquilla?
The nearest strong improvement is around 50 kilometres away, with Bortle 4 conditions near El Retén, Magdalena to the east-south-east and also near Luruaco, Atlántico to the south-west. For a darker step again, Near Dibulla, La Guajira to the east reaches Bortle 3.
Is Barranquilla good for astrophotography?
It can work for lunar and planetary astrophotography, and for some bright deep-sky targets with the right filters and careful processing. For wide-field nightscapes or faint nebulae, you will get much better results by travelling out to darker skies.
How far do you need to drive from Barranquilla for better stargazing?
For a clear improvement, plan on roughly 50 to 55 kilometres. That is enough to reach good rural skies near El Retén, Magdalena or Luruaco, Atlántico, while more ambitious trips of around 155 kilometres can take you to darker Bortle 3 conditions near Dibulla, La Guajira.