AA Light pollution is a growing concern for stargazers around the world particulary for those who live in or near cities. Over the years, it has become more difficult to observe fainter stars with the unaided eye due to light pollution in our cities. Then we can do more and feel safer in our cities, at home, and while driving.
Glare always degrades visibility.
Use the right amount of light, not overkill and not too little. Use uniform lighting, so our eyes can adjust easily. Avoid light trespass. Shine the light only where it's wanted or needed. No up light.