The basic framework of international time zones is that there is about one hour difference in solar time for every 15 degrees of longitude.
国际时区的基本框架是经度每隔15度，太阳时就相差一小时。
Solar altitude, Azimuth, Geography longitude, latitude, altitude, cloud coverage, atmospheric transparency.
太阳高度角，太阳方位角，地理经度纬度，海拔高度，云量，大气透明度。
The basic framework of international time zones is that there is about one hour difference in solar time for every 15 DE GREes of longitude.
国际时区的基本框架是经度每隔15度，太阳时就相差一小时。
In this paper, the Carrington longitude distribution of source location for 59 solar proton events with definite location on the solar surface during 1997-2003 is studied.
分析了1997-2003年期间的59个太阳质子事件，太阳质子事件源区的卡林顿经度带。
Greenwich mean time (GMT) is mean solar time at the Royal Greenwich Observatory in Greenwich, London, England, which by convention is at 0 degrees geographic longitude.
格林尼治国际标准以英国伦敦格林威治皇家天文台为准，也就是零经度为准。
Greenwich mean time (GMT) is mean solar time at the Royal Greenwich Observatory in Greenwich, London, England, which by convention is at 0 degrees geographic longitude.
格林尼治国际标准以英国伦敦格林威治皇家天文台为准，也就是零经度为准。
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