Tools工具
Dark Sky Window暗夜窗口（银河）
The Milky Way needs a moonless sky. Find the next dark-sky evenings and check moon illumination for any date.拍摄银河需要无月夜空。查找下一个暗夜窗口，并查看任意日期的月光强度。
- Set your location and any date around the month you care about.设置你的位置与目标月份附近的任意日期。
- The table lists the evenings nearest the new moon where the moon is below the horizon during the deep-night window.表格列出最接近新月、且深夜窗口期间月亮位于地平线以下的傍晚。
- Cross-check the moon illumination column: below ~10% is excellent for Milky Way photography; below 25% is still workable.交叉核对月亮照明度列：约 10% 以下非常适合银河摄影；25% 以下仍可拍摄。
The Milky Way core is visible in the northern hemisphere roughly March–October, best around June–July. Combine the darkest evening with the core's position in your sky for the winning night.北半球银河核心约在 3–10 月可见，6–7 月最佳。把最暗的夜晚与银心在你天空中的位置结合，就能锁定最佳拍摄夜。
