Greyline & Sun Times

Greyline & Sun Times灰线与日出日落

Sunrise, sunset and the greyline for any spot on Earth — prime time for long-distance DX.任意地点的日出、日落与灰线时刻——远距离 DX 的黄金窗口。

Try试试:

Sun right now此时太阳位置

GREYLINE NOW — prime DX window正值灰线时刻——DX 黄金窗口,低波段远距离传播最佳

Sun times日出日落时间

UTC世界时Local本地时间

24-hour sun elevation24 小时太阳高度角

Standard NOAA solar equations; times typically within a minute or two. Greyline = sun elevation between −3° and +3°.采用 NOAA 标准太阳位置公式,时间误差通常在一两分钟内。灰线指太阳高度角在 −3° 至 +3° 之间。

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