普通路灯怎么改就能减少对天文观测的影响？
How can ordinary streetlights be changed to help astronomy?
用向下照射、截光型的暖色LED灯，减少向上散射的光，既能省电又能保护暗夜。
Use downward, shielded warm-LED lamps that cut upward scatter—saving energy while protecting dark skies.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Terence Dickinson,《NightWatch》第4版,Firefly Books,2006
T. Dickinson, NightWatch: A Practical Guide to Viewing the Universe, 4th ed., Firefly Books, 2006; Chinese ed.
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL19287031W：Nightwatch : a practic
#截光 #暗夜保护
想看银河最好去什么样的地方？
Where is best to see the Milky Way?
去远离城镇、海拔较高、天气干燥的地方，避开月亮和灯光，银河的尘埃带才会清晰可见。
Go far from towns, to higher, dry places, away from moon and lights, and the Milky Way's dust lane becomes clear.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Terence Dickinson,《NightWatch》第4版,Firefly Books,2006
T. Dickinson, NightWatch: A Practical Guide to Viewing the Universe, 4th ed., Firefly Books, 2006; Chinese ed.
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL19287031W：Nightwatch : a practic
#银河 #暗夜
为什么城里看不到星星？
Why can't we see stars in the city?
城市的路灯和广告牌把夜空照亮，这种光污染淹没了暗星，只留下最亮的几颗和月亮。
Streetlights and signs brighten the sky; this light pollution drowns faint stars, leaving only the brightest and the Moon.
难度 入门 · 适合 小学低段(6-8)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Terence Dickinson,《NightWatch》第4版,Firefly Books,2006
T. Dickinson, NightWatch: A Practical Guide to Viewing the Universe, 4th ed., Firefly Books, 2006; Chinese ed.
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL19287031W：Nightwatch : a practic
#光污染 #暗星