Dorado.

The definitive guide to dark skies and celestial observation in Dorado, PR. Verified using National Park Service and NASA Night Sky Network Clubs data.

Bortle Scale
6
Best Regional Reading
Sky Quality
20.07
SQM Zenith Value
Verified Sites
5
Community Vetted
Dark Sky Parks
2
IDA Certified Nearby

Quick Guide for Dorado

  • Top Community Pick: Playa Los machos Ceiba (~43.2 miles)
  • Best Scientific Reading: Bortle 6.0 at Boca Chita Key
  • Local Experts: San Antonio Astronomy Club
  • Verified Observations: 5 distinct spots

If you’re looking to escape the light pollution of Dorado, you’re in luck. While enthusiasts often gather at Playa Los machos Ceiba for its accessibility, scientific audits conducted by the National Park Service at Boca Chita Key provide the most accurate reading of the regional sky quality, measuring at a Bortle 6.0. The local landscape of Dorado offers several pockets of darkness that are perfect for deep-sky observation.

The Best Times for Stargazing in Dorado

Since Dorado sits in a transitional light zone, viewing is best during the New Moon or after midnight when some commercial lighting is reduced.

Expert Tips for Dorado Observers

Before heading out to Playa Los machos Ceiba, we recommend arriving during civil twilight to scout the terrain safely. A medium-aperture telescope is ideal for resolving the rings of Saturn and bright star clusters at this spot. Local enthusiasts often frequent this spot, making it a great place to meet experienced observers. Regardless of your gear, allow 30 minutes for your eyes to fully dark-adapt.

Local Top Spots

Community-vetted locations known for clear horizons and accessibility for telescopes and astrophotography.

Premier Verified Hub Confidence: 100%

Playa Los machos Ceiba

43.2 mi
Distance

" {'¡Prepárate para una noche mágica bajo las estrellas! "

Ceiba, PR 00735
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Premier Verified Hub Confidence: 100%

Playa Los machos Ceiba

43.2 mi
Distance

" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "

Ceiba, PR, PR 00735
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Active Viewing Spot Confidence: 82.5%

Parque de las Ciencias Bayamón

8.3 mi
Distance

" Standard Advice: Dress in layers as temperatures drop quickly after sunset. Use a red-light flashlight to preserve your night vision. "

Bayamón, PR 00961
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Active Viewing Spot Confidence: 77.5%

castillo san felipe el morro, viejo san juan, pR

9.7 mi
Distance

" {'Fecha: 8 de marzo de 2025 Hora: 7:00 pm - 10:00 pm Lugar: El Morro, San Juan Únete a la SAC para disfrutar de una experiencia única. "

San Juan, PR 00901
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Active Viewing Spot Confidence: 77.5%

Castillo San Felipe del Morro

9.7 mi
Distance

" {'¡Una noche mágica bajo las estrellas… frente al Morro! "

San Juan, PR 00901
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Scientific Audit

NPS Sky Measurements

Instrumented readings from the National Park Service Night Sky Program, providing the most accurate SQM and Bortle classifications.

Boca Chita Key

Biscayne NP

19.8 SQM
Bortle Class 6

"Extremely bright site, made even more so by the abundance (100's!) of campers/partyers who brought every conseivable form of light. Was able to shield most of the direct glare sources from the camera. Partly cloudy much of the night, but a short period of mostly clear skies. The light dome of the greataer Miami area overwhelming to the north and west. The sky to the east and southeast not too bad if you screen yourself from all the other light. The light dome extended to the zenith. Stars visible to the east at about 10°-15° above the horizon."

Observation Date
3/1/2014
Elevation
2m
Zenith Brightness
20.06

Boca Chita Key

Biscayne NP

20.07 SQM
Bortle Class 6

"One of the brightest NPS sites this observer has ever visited. The continuous light dome from Homestead to Miami and north is impressive. The skies were partly cloudy initially, but slowly cleared to only a couple of some clouds. Limiting magnitude star of 6.8 (in Ursa Major) was only seen later in the night (0230) after at least 2 hours of observing time away from the light dome. Warm temperatures helped with visual acclimation. Most all of the local glare sources present the previous night were gone, which also helped the viewing. The entire landscape was well illuminated from the distant light dome."

Observation Date
3/3/2014
Elevation
1m
Zenith Brightness
20.38

International Dark Sky Parks

Premier locations certified for their exceptional dark sky quality and commitment to light pollution mitigation.

IDA Certified Distance: 1090.1 miles

Big Cypress National Preserve

Big Cypress National Preserve is an IUCN category IV (habitat/species management area) site consisting of 290,000 hectares of U.S. federal lands in southern…

Category
Dark Sky Park
Certified
2016
Land Area
2,950 km2
Coordinates
25.9006, -81.3223
IDA Certified Distance: 1129.6 miles

Kissimmee Prairie Preserve State Park

Kissimmee Prairie Preserve State Park (KPPSP), a 54,000 acre property in central Florida, is one of the largest parks in the Florida State Parks System.

Category
Dark Sky Park
Certified
2016
Land Area
234.7 km2
Coordinates
27.5856, -81.0464

Local Astronomy Clubs

Connect with experts and fellow enthusiasts through local astronomical societies and community groups.

NASA Night Sky Club ID
#583

San Antonio Astronomy Club

San Juan, PR

NASA Night Sky Club ID
#648

Asociación de Observación, Difusión Astronómica y Ciencias del Espacio

Caguas, PR