Baton Rouge Stargazing & Astronomy Report
Light pollution and stargazing locations near Baton Rouge
- City
- Baton Rouge
- Country
- United States
- Latitude
- 30.4515
- Longitude
- -91.1871
Key Sky Quality Metrics
- SQM (mag/arcsec²)
- 17.48
- Bortle class
- Class 9 (Class 9)
- Darkness Quotient
- 19%
- Dataset
- March 2026
Inner city sky
Stargazing in Baton Rouge
Baton Rouge is Louisiana’s state capital, a major Gulf South city on the Mississippi River with a busy urban and industrial character.
The city generally experiences Extreme Light Pollution, with a Darkness Quotient of just 19% — placing it among the more light-polluted urban skies in the United States.
In practical terms, brighter targets are the most realistic from within the city: the Moon, planets, double stars and the brightest open clusters. A few standout objects such as Orion Nebula and the brightest globular clusters can be attempted, but faint galaxies, the Milky Way and low-contrast nebulae are largely washed out by the city glow.
Meaningfully darker skies are not close to hand, but they do become available with a moderate drive. The nearest really worthwhile improvement is about 70 kilometres to the south-south-west, near St. Mary Parish, Louisiana, where conditions reach a much darker Bortle 4 sky.
The map shows Baton Rouge as a strong bright core, with intense pink-white urban lighting surrounded by a broad halo of red, orange and yellow. That pattern points to a city whose skyglow spreads well beyond the centre, so the brightness affects a wide area rather than stopping sharply at the built-up edge.
Across much of the surrounding region, the colours break into a chain of smaller bright pockets linked by a generally luminous background. This suggests that even outside the city, localised settlements and infrastructure continue to lift the sky brightness, especially along the more developed corridors.
The darker zones appear more clearly away from the main urban belt, where the map shifts into blue and then darker tones. Those quieter areas are most evident farther out from the city, particularly away from the brightest built-up strip, showing that Baton Rouge stands out as one of the dominant light sources in its immediate surroundings.
What the sky overhead is like
Looking straight up from Baton Rouge, the zenith remains heavily affected by urban light, consistent with an inner-city sky. The background never gets properly dark, so familiar constellations are reduced to their brighter stars and subtler patterns lose much of their shape.
In this sort of sky, the Moon and planets still stand out well, and the brightest stars remain easy enough to pick out. What is missing is the sense of depth: star fields look sparse, faint companions disappear, and the Milky Way is effectively absent from view.
north - poor
About 15 kilometres north of the city, the sky is still poor for stargazing, sitting around Bortle 7. The encouraging part is that this direction improves strongly with distance, reaching genuinely dark conditions at about 100 kilometres and already becoming good by around 50 kilometres.
north-north-east - poor
Around 15 kilometres to the north-north-east, conditions are still poor, at roughly Bortle 8. This direction does improve with a longer run, with excellent dark skies appearing at about 100 kilometres, though the first really useful step up comes earlier as the sky settles into much better suburban-rural conditions.
north-east - poor
At roughly 15 kilometres to the north-east, the sky remains poor, around Bortle 7. It does get steadily better farther out, reaching good dark-sky territory by about 100 kilometres, but it does not quite reach the report’s genuinely dark threshold within the sampled distance.
east-north-east - poor
About 15 kilometres east-north-east of Baton Rouge, the sky is still poor, at about Bortle 8. There is a worthwhile improvement farther out, with good conditions by roughly 100 kilometres, but genuinely dark skies are not reached within the sampled range in this direction.
east - poor
At around 15 kilometres due east, the sky is still poor, around Bortle 8. This is one of the less rewarding directions overall: conditions improve for a while farther out, but genuinely dark skies are not within the sampled radius and the far-distance picture remains bright compared with other directions.
east-south-east - poor
About 15 kilometres east-south-east, the sky is still poor and heavily light-polluted, at Bortle 9. There is a substantial payoff if you keep going, though, with excellent dark skies only arriving at around 200 kilometres.
south-east - poor
Around 15 kilometres to the south-east, conditions are still poor, at roughly Bortle 8. This direction improves gradually and eventually reaches excellent dark skies at about 200 kilometres, but it is not a quick win from the city.
south-south-east - poor
At about 15 kilometres south-south-east, the sky remains poor, around Bortle 8. The real reward lies much farther out, where this direction eventually reaches excellent conditions at roughly 200 kilometres.
south - poor
Around 15 kilometres due south, the sky is still poor, around Bortle 7. It improves steadily with distance, becoming good by about 100 kilometres and excellent by around 200 kilometres.
south-south-west - poor
About 15 kilometres to the south-south-west, the sky is still poor and strongly affected by city glow, around Bortle 9. This direction improves sharply farther out, reaching excellent dark skies at about 100 kilometres, with good conditions already appearing much sooner.
south-west - marginal
At roughly 15 kilometres south-west of the city, the sky improves to marginal territory at about Bortle 6, making this one of the better quick-drive directions. It becomes good by around 50 kilometres and reaches excellent dark-sky quality at about 200 kilometres.
west-south-west - marginal
Around 15 kilometres west-south-west, the sky is marginal, at about Bortle 6. It does improve to good dark-sky territory farther out, but genuinely dark skies are not reached within the sampled radius in this direction.
west - marginal
At about 15 kilometres due west, the sky is marginal, around Bortle 6. This direction offers some improvement with distance and reaches good conditions farther out, but it never gets to genuinely dark skies within the sampled range.
west-north-west - marginal
About 15 kilometres west-north-west of Baton Rouge, the sky is marginal, at roughly Bortle 6. Farther out it improves to good dark-sky levels, but genuinely dark skies are not reached within the sampled radius in this direction.
north-west - marginal
Around 15 kilometres to the north-west, the sky is marginal, at about Bortle 6. This is a promising direction overall, becoming good by around 50 kilometres and reaching genuinely dark conditions at roughly 200 kilometres.
north-north-west - marginal
At roughly 15 kilometres north-north-west, the sky is marginal, around Bortle 6. A longer drive pays off well here, with good conditions by about 50 kilometres and excellent dark skies at around 100 kilometres.
zenith - poor
Straight overhead in Baton Rouge, the zenith is poor, consistent with a Bortle 9 inner-city sky. Expect a bright grey-orange background rather than a properly dark one, with only the more familiar constellations and brighter stars showing clearly while the Milky Way disappears completely.
-
Near West Carroll Parish, Louisiana
- Direction
- SW
- Distance (km)
- 249.2
- SQM
- 21.34
- Bortle
- 3
Milky Way visible, broadband DSO imaging
-
Near Terrebonne Parish, Louisiana
- Direction
- S
- Distance (km)
- 123.9
- SQM
- 21.20
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
-
Near St. Mary Parish, Louisiana
- Direction
- SSW
- Distance (km)
- 68.6
- SQM
- 20.92
- Bortle
- 4
Bright nebulae, galaxies, narrowband imaging
Genuinely dark skies are not right on Baton Rouge’s doorstep, so a worthwhile stargazing trip means leaving the city by a fair margin.
The nearest good step up is roughly 70 kilometres to the south-south-west, near St. Mary Parish, Louisiana, where the sky reaches Bortle 4. If you are prepared to go farther, even darker conditions open up to the south near Terrebonne Parish, Louisiana, and darker still near West Carroll Parish, Louisiana.
-
Within 100 km
- Place
- Near St. Mary Parish, Louisiana
- Direction
- SSW
- Distance (km)
- 68.6
- SQM
- 20.92
- Bortle
- 4
-
Within 200 km
- Place
- Near Terrebonne Parish, Louisiana
- Direction
- S
- Distance (km)
- 123.9
- SQM
- 21.20
- Bortle
- 4
-
Within 500 km
- Place
- Near West Carroll Parish, Louisiana
- Direction
- SW
- Distance (km)
- 249.2
- SQM
- 21.34
- Bortle
- 3
Long-term trend
Baton Rouge’s readings are fairly steady over the long term, but the overall direction is slightly brighter rather than darker. The trend slope is small at about -0.0055 SQM per year, so this is a gradual change rather than a dramatic shift.
Across the full set of observations, the city ranges from 17.41 to 17.70 SQM, with a mean of 17.57. The latest reading of 17.48 SQM sits a little below that average, which fits the picture of persistently bright inner-city skies with only modest variation from one period to another.
From within Baton Rouge, the most rewarding targets are the ones that can punch through strong skyglow: the Moon, bright planets, double stars and a short list of very bright clusters. These are the objects most likely to give satisfying views without needing to leave the city.
A handful of brighter deep-sky showpieces can still be attempted, especially when they are high in the sky, but they will lack contrast and fine detail. For the Milky Way, faint galaxies, diffuse nebulae and better meteor watching, a proper trip to darker countryside makes a very noticeable 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 Baton Rouge?
Yes — you can still see stars from Baton Rouge, but the view is strongly reduced by city light. The brighter stars and main constellation outlines are visible, while many fainter stars are lost in the bright background sky.
Can you see the Milky Way from Baton Rouge?
Not realistically from within the city itself. Baton Rouge’s sky is bright enough that the Milky Way is effectively washed out from normal in-city observing spots.
What Bortle class is Baton Rouge?
Baton Rouge is Bortle 9, which is an inner-city sky. In practical terms, that means severe light pollution and a strong emphasis on bright targets rather than faint deep-sky observing.
What is the SQM reading for Baton Rouge?
The measured sky brightness is 17.48 SQM. That is a bright urban reading and fits the very limited dark adaptation most observers will experience in the city.
Where are the nearest dark skies to Baton Rouge?
The nearest clearly worthwhile darker site in the supplied locations is Near St. Mary Parish, Louisiana, about 68.6 kilometres to the south-south-west, where conditions reach Bortle 4. Farther afield, Near Terrebonne Parish, Louisiana offers Bortle 4 skies at 123.9 kilometres, and Near West Carroll Parish, Louisiana reaches Bortle 3 at 249.2 kilometres.
Is Baton Rouge good for astrophotography?
It can work for lunar, planetary and some narrow-field bright-object imaging, but it is not a strong city for deep-sky astrophotography under natural-looking skies. For faint nebulae, galaxies and wide-field nightscape work, you will get much better results by travelling to darker locations.
How far do you need to drive from Baton Rouge for darker skies?
For a meaningful improvement, you are looking at roughly 70 kilometres to reach Bortle 4 conditions near St. Mary Parish, Louisiana. Some directions improve sooner than others, but for genuinely dark skies the journey is usually closer to about 100 to 200 kilometres depending on which way you go.