The Bortle Scale measures the darkness of night skies and ranges from Class 1 (pristine, dark skies) to Class 9 (inner-city light pollution). This helps astronomers and stargazers understand how much light pollution affects visibility of stars, planets, and celestial events.
- Designed as to be slightly relaxed with the hem falling right at the hip
- Sleeves are intended to hit at the mid to lower arm
- If you're looking for a roomier fit, size up one size
- Machine wash cold with like colors, do not bleach. Do not dry clean.
- Tumble dry gentle low heat or line dry, cool iron as needed.
- 100% Cotton
What you can do to help reduce light pollution:
- Swap out bright lights for reflective gear
- Prep camp before dark & skip the decorative camp lights
- Avoid using car headlights at your campsite
- Use red, amber, or yellow light/headlamps instead of bright white light
- Turn off outdoor lights when not in use
