2017 Total Solar Eclipse / Éclipse solaire totale de 2017

the path of the Moon's umbral shadow — the path of totality — during the total solar eclipse on August 21, 2017, as well as the obscuration (the fraction of the Sun's area covered by the Moon) in places outside the umbral path. Features include state boundaries, major highways, and 833 place names. At 18" × 9" (45 × 22.5 cm), the scale of the map is approximately 1:10,000,000.The umbra is shown at 10-minute intervals. Umbra shapes within U.S. time zones are labeled in local time. To read about the reason the shapes aren't smooth ovals, go here.The map uses a number of NASA data products. The land color is based on Blue Marble Next Generation, a global mosaic of MODIS images assembled by NASA's Earth Observatory. Elevations are from SRTM, a radar instrument flown on Space Shuttle Endeavour during the STS-99 mission. Lunar topography, used for precise shadow calculations, is from NASA LROlaser altimetry and JAXA Kaguya stereo imaging. Planetary positions are from the JPL DE421 ephemeris. The lunar limb profile and eclipse calculations are by the visualizer.

本数据集详尽描绘了2017年8月21日日全食期间月球的本影路径——即全食带——及其在非本影带地区的日面遮挡情况（月球覆盖日面面积的比例）。其中包含州界、主要高速公路以及833个地名。地图比例尺约为1:1000万，尺寸为18英寸×9英寸（45厘米×22.5厘米）。本影部分以每10分钟为间隔进行标注。美国时区内本影形状以当地时间进行标注。欲了解本影形状非平滑椭圆的原因，请参阅此处。该地图采用了众多NASA数据产品。陆地颜色基于由NASA地球观测站汇编的Blue Marble Next Generation全球镶嵌MODIS图像。海拔数据来自SRTM，该雷达仪器在STS-99任务期间由航天飞机奋进号搭载。月球地形学，用于精确的阴影计算，源自NASA LRO激光测高仪和JAXA Kaguya立体成像。行星位置数据来自JPL DE421天文历。月球边缘轮廓和日食计算由可视化者完成。