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In this animation, the Earth, Moon, Sun, and shadow cones are viewed through a telescopic lens on a virtual camera located far behind the Earth. Long focal lengths like the one used here appear to compress the distance between near and far objects. Despite appearances, the geometry of the scene is correct. The Moon's umbra cone is roughly 30 Earth diameters long, barely enough to reach the Earth, while the Sun is almost 400 times farther away.
From this perspective, we see the night sides of both the Earth and the Moon. Solar eclipses can only occur during New Moon, when the entire Earth-facing side of the Moon is experiencing nighttime darkness.",
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"title": "Rare Total Solar Eclipse Is Only Two Months Away Live Shots 6.21.17",
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"description": "When depicting an eclipse path, data visualizers have usually chosen to represent the moon's shadow as an oval. By bringing in a variety of NASA data sets, visualizer Ernie Wright has created a new and more accurate representation of the eclipse. For the first time, we are able to see that the moon's shadow is better represented as a polygon. This more complicated shape is based NASA's Lunar Reconnaissance Orbiter's view of the mountains and valleys that form the moon's jagged edge. By combining moon's terrain, heights of land forms on Earth, and the angle of the sun, Wright is able to show the eclipse path with the greatest accuracy to date. || ",
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"alt_text": "Hear data visualizer Ernie Wright discuss the map in the video above. To see the maps unedited, watch the two videos below.Music credit: Life Choices by Eric ChevalierComplete transcript available.Watch this video on the NASA Goddard YouTube channel.",
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"title": "Insolation during the 2017 Eclipse",
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"title": "2017 Solar Eclipse from L1",
"description": "The August 21, 2017 total solar eclipse as seen from a satellite in orbit around L1, a point about 1.5 million kilometers from Earth in the direction of the Sun. || eclipse_L1.0720_print.jpg (1024x576) [67.6 KB] || eclipse_L1.0720_searchweb.png (320x180) [39.9 KB] || eclipse_L1.0720_thm.png (80x40) [4.2 KB] || eclipse_L1_1080p30.mp4 (1920x1080) [10.0 MB] || eclipse_L1_720p30.mp4 (1280x720) [5.1 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || eclipse_L1_720p30.webm (1280x720) [5.6 MB] || eclipse_L1_2160p30.mp4 (3840x2160) [28.4 MB] || eclipse_L1_360p30.mp4 (640x360) [1.7 MB] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || eclipse_L1_1080p30.mp4.hwshow [184 bytes] || ",
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"title": "NASA On Air: NASA Previews 2017 Total Solar Eclipse (11/11/2015)",
"description": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. || IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_print.jpg (1024x576) [43.0 KB] || IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_searchweb.png (320x180) [44.7 KB] || IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_thm.png (80x40) [3.7 KB] || NBC_TODAY_2017SolarEclipse_NBC_Today.mov (1920x1080) [10.7 MB] || 2017SolarEclipse.wmv (1280x720) [5.2 MB] || 2017SolarEclipse.avi (1280x720) [4.0 MB] || BARON_SERVICE_2017SolarEclipse_baron.mp4 (1920x1080) [14.5 MB] || IPAD_DELIVERABLES_2017SolarEclipse_iPad_960x540.m4v (960x540) [17.4 MB] || IPAD_DELIVERABLES_2017SolarEclipse_iPad_1280x720.m4v (1280x720) [32.6 MB] || IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080.m4v (1920x1080) [51.4 MB] || WEBM_2017SolarEclipse.webm (960x540) [7.2 MB] || WC_PRORES_422_2017SolarEclipse_prores.mov (1920x1080) [305.1 MB] || WSI_WEATHER_CHANNEL_2017SolarEclipse_1920x1080.mov (1920x1080) [401.4 MB] || WSI_WEATHER_CHANNEL_2017SolarEclipse_1280x720.mov (1280x720) [431.6 MB] || ",
"release_date": "2015-11-11T13:00:00-05:00",
"update_date": "2023-05-03T13:49:08.478882-04:00",
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"filename": "IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_print.jpg",
"media_type": "Image",
"alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r",
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"height": 576,
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},
{
"id": 4314,
"url": "https://svs.gsfc.nasa.gov/4314/",
"page_type": "Visualization",
"title": "2017 Total Solar Eclipse in the U.S.",
"description": "A view of the United States during the total solar eclipse of August 21, 2017, showing the umbra (black oval), penumbra (concentric shaded ovals), and path of totality (red) through or very near several major cities. || usa.0780_print.jpg (1024x576) [144.7 KB] || usa.0780_searchweb.png (320x180) [90.1 KB] || usa.0780_thm.png (80x40) [6.8 KB] || eclipse2017usa_1080p30.mp4 (1920x1080) [26.0 MB] || eclipse2017usa_720p30.mp4 (1280x720) [14.0 MB] || eclipse2017usa_720p30.webm (1280x720) [5.0 MB] || fancy (1920x1080) [0 Item(s)] || eclipse2017usa_2160p30.mp4 (3840x2160) [69.5 MB] || eclipse2017usa_360p30.mp4 (640x360) [5.1 MB] || fancy (3840x2160) [0 Item(s)] || 9600x3240_3x1_30p (9600x3240) [0 Item(s)] || 2017_US_eclipse_4314.pptx [14.6 MB] || 2017_US_eclipse_4314.key [17.1 MB] || ",
"release_date": "2015-09-09T10:00:00-04:00",
"update_date": "2025-02-02T00:07:13.266670-05:00",
"main_image": {
"id": 442536,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004314/usa.0780_print.jpg",
"filename": "usa.0780_print.jpg",
"media_type": "Image",
"alt_text": "A view of the United States during the total solar eclipse of August 21, 2017, showing the umbra (black oval), penumbra (concentric shaded ovals), and path of totality (red) through or very near several major cities.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 4321,
"url": "https://svs.gsfc.nasa.gov/4321/",
"page_type": "Visualization",
"title": "2017 Eclipse Shadow Cones",
"description": "The umbral and penumbral shadow cones travel across the surface of the Earth during the August 21, 2017 total solar eclipse. || cones.0885_print.jpg (1024x576) [79.2 KB] || cones.0885_searchweb.png (320x180) [46.7 KB] || cones.0885_thm.png (80x40) [4.1 KB] || shadow_cones_1080p30.mp4 (1920x1080) [13.9 MB] || shadow_cones_720p30.mp4 (1280x720) [6.9 MB] || shadow_cones_720p30.webm (1280x720) [5.6 MB] || shadow_cones_720p30.wmv (1280x720) [17.9 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || shadow_cones_360p30.mp4 (640x360) [2.3 MB] || 2017-eclipse-shadow-cones-mp4.hwshow [217 bytes] || ",
"release_date": "2015-09-09T10:00:00-04:00",
"update_date": "2025-01-05T00:06:11.167278-05:00",
"main_image": {
"id": 442334,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004321/cones.0885_print.jpg",
"filename": "cones.0885_print.jpg",
"media_type": "Image",
"alt_text": "The umbral and penumbral shadow cones travel across the surface of the Earth during the August 21, 2017 total solar eclipse.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 4324,
"url": "https://svs.gsfc.nasa.gov/4324/",
"page_type": "Visualization",
"title": "2017 Eclipse and the Moon's Orbit",
"description": "The Moon orbits the Earth in the months prior to the August 21, 2017 total solar eclipse. Viewed from above, the Moon's shadow appears to cross the Earth every month, but a side view reveals the five-degree tilt of the Moon's orbit. Its shadow only hits the Earth when the line of nodes, the fulcrum of its orbital tilt, is pointed toward the Sun. || orbit.0350_print.jpg (1024x576) [37.8 KB] || orbit.0350_searchweb.png (320x180) [37.6 KB] || orbit.0350_thm.png (80x40) [4.1 KB] || eclipse_orbit_720p30.webm (1280x720) [3.3 MB] || eclipse_orbit_1080p30.mp4 (1920x1080) [3.6 MB] || eclipse_orbit_720p30.mp4 (1280x720) [1.8 MB] || orbit (1920x1080) [0 Item(s)] || eclipse_orbit_1080p30.mov (1920x1080) [391.1 MB] || eclipse_orbit_360p30.mp4 (640x360) [662.1 KB] || 2017-eclipse-moon-orbit.hwshow [287 bytes] || ",
"release_date": "2015-09-09T10:00:00-04:00",
"update_date": "2025-01-05T00:06:11.513499-05:00",
"main_image": {
"id": 442179,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004324/orbit.0350_print.jpg",
"filename": "orbit.0350_print.jpg",
"media_type": "Image",
"alt_text": "The Moon orbits the Earth in the months prior to the August 21, 2017 total solar eclipse. Viewed from above, the Moon's shadow appears to cross the Earth every month, but a side view reveals the five-degree tilt of the Moon's orbit. Its shadow only hits the Earth when the line of nodes, the fulcrum of its orbital tilt, is pointed toward the Sun.",
"width": 1024,
"height": 576,
"pixels": 589824
}
}
],
"sources": [],
"products": [
{
"id": 12481,
"url": "https://svs.gsfc.nasa.gov/12481/",
"page_type": "Produced Video",
"title": "2017's All American Solar Eclipse",
"description": "On August 21, 2017, a solar eclipse will be visible across North America. || usa_suns.0750_print.jpg (1024x576) [140.4 KB] || usa_suns.0750_1024x576.jpg (1024x576) [129.2 KB] || usa_suns.0750_searchweb.png (320x180) [88.7 KB] || usa_suns.0750_thm.png (80x40) [6.9 KB] || usa_suns.0750.tif (1920x1080) [5.0 MB] || ",
"release_date": "2017-03-27T12:00:00-04:00",
"update_date": "2023-05-03T13:47:49.365449-04:00",
"main_image": {
"id": 416972,
"url": "https://svs.gsfc.nasa.gov/vis/a010000/a012400/a012481/usa_suns.0750_print.jpg",
"filename": "usa_suns.0750_print.jpg",
"media_type": "Image",
"alt_text": "On August 21, 2017, a solar eclipse will be visible across North America.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 12117,
"url": "https://svs.gsfc.nasa.gov/12117/",
"page_type": "Produced Video",
"title": "Visualizing the 2017 All-American Eclipse",
"description": "Complete transcript available.Watch this video on the NASAgovVideo YouTube channel.This video is also available on our YouTube channel. || sun_earth.0240_print.jpg (1024x576) [41.2 KB] || sun_earth.0240_searchweb.png (320x180) [37.9 KB] || sun_earth.0240_thm.png (80x40) [3.9 KB] || LARGE_MP4_12117_visualizing_2017_eclipseV2_large.mp4 (1920x1080) [98.4 MB] || 12117_visualizing_2017_eclipseV2.mov (1920x1080) [2.6 GB] || YOUTUBE_HQ_12117_visualizing_2017_eclipseV2_youtube_hq.mov (1920x1080) [302.9 MB] || WEBM_12117_visualizing_2017_eclipseV2.webm (960x540) [37.4 MB] || PRORES_B-ROLL_12117_visualizing_2017_eclipseV2_prores.mov (1280x720) [1.3 GB] || 12117_visualizing_2017_eclipseV2.en_US.srt [1.5 KB] || 12117_visualizing_2017_eclipseV2.en_US.vtt [1.5 KB] || 12117_visualizing_2017_eclipseV2_lowres.mp4 (480x272) [13.6 MB] || NASA_PODCAST_12117_visualizing_2017_eclipseV2_ipod_sm.mp4 (320x240) [17.1 MB] || ",
"release_date": "2016-04-14T12:00:00-04:00",
"update_date": "2023-05-03T13:48:43.369447-04:00",
"main_image": {
"id": 436253,
"url": "https://svs.gsfc.nasa.gov/vis/a010000/a012100/a012117/sun_earth.0240_print.jpg",
"filename": "sun_earth.0240_print.jpg",
"media_type": "Image",
"alt_text": "Complete transcript available.Watch this video on the NASAgovVideo YouTube channel.This video is also available on our YouTube channel.",
"width": 1024,
"height": 576,
"pixels": 589824
}
}
],
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"older_versions": [],
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}