Sulphur.

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

Bortle Scale
5
Best Regional Reading
Sky Quality
20.53
SQM Zenith Value
Verified Sites
0
Community Vetted
Dark Sky Parks
2
IDA Certified Nearby

Quick Guide for Sulphur

  • Top Community Pick: local vantage points (~N/A miles)
  • Best Scientific Reading: Bortle 5.0 at Lance Rosier Unit
  • Local Experts: North Houston Astronomy Club
  • Verified Observations: 0 distinct spots

If you’re looking to escape the light pollution of Sulphur, you’re in luck. While enthusiasts often gather at local vantage points for its accessibility, scientific audits conducted by the National Park Service at Lance Rosier Unit provide the most accurate reading of the regional sky quality, measuring at a Bortle 5.0. The transition between the urban infrastructure of Sulphur and the more rural stretches of LA creates several ‘dark sky’ corridors.

The Best Times for Stargazing in Sulphur

Since Sulphur 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 Sulphur Observers

Before heading out to local vantage points, we recommend arriving during civil twilight to scout the terrain safely. Binoculars are a favorite for regulars here for sweeping views of the Moon’s craters and larger constellations. 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.

Scientific Audit

NPS Sky Measurements

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

Lance Rosier Unit

Big Thicket N PRES

20.53 SQM
Bortle Class 5

"Lots of trees blocking the horizon. Clear sky. There is an oil and gas field at the end of the road. Sky looks brightest towards WSW. The light dome extends all the way to zenith. Milky Way looks faint overhead."

Observation Date
10/27/2019
Elevation
27m
Zenith Brightness
20.86

Horn Island

Gulf Islands NS

20.41 SQM
Bortle Class 5

"Mosly clear night, with a bank of clouds to the south/southeast. Clearing. Visible haze on the southern horizon over the Gulf as well as east and west. Above horizon transparency is moderate/good. One major light dome from Pascagoula dominates the northern horizon. This is part of the military ship yard. Out on the gulf there are several discrete lights from oil ships waitng to come into port. To the west is an elongated light dome, less intense than to the North. Milky Way is visible, especially early in the night when it is over the Gulf. Dust lanes visible overhead in Cygnus, moderate detial. However Milky Way loses contrast as it moves to the northern horizon and into the light dome, and Saggitarius sets."

Observation Date
10/21/2014
Elevation
0m
Zenith Brightness
20.65

International Dark Sky Parks

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

IDA Certified Distance: 265.2 miles

Shield Ranch Barton Creek

Shield Ranch Barton Creek is located 18 miles west of downtown Austin, Texas, USA, nestled in the Hill Country of Central Texas. It is a 6,400…

Category
Urban Night Sky Place
Certified
2024
Land Area
25.9 Sq. Km
Coordinates
30.2700, -97.8000
IDA Certified Distance: 272.9 miles

Jonestown, Texas

The City of Jonestown, Texas, known as the “Gateway to the Hill Country,” is located on the shores of Lake Travis, 25 miles northwest of Austin in Travis County.

Category
International Dark Sky Community
Certified
2023
Land Area
13.7 Sq. Km
Coordinates
30.4955, -97.9233

Local Astronomy Clubs

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

NASA Night Sky Club ID
#98

North Houston Astronomy Club

Humble, TX

NASA Night Sky Club ID
#395

Johnson Space Center Astronomical Society

Houston, TX