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URLhttps://www.al.com/news/2017/08/solar_eclipse_2017_think_youve.html
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Meta TitleSolar eclipse 2017: Think you've read everything yet? Here are a few things you may not know - al.com
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You'd have to be totally off the grid to  not  know there's a solar eclipse coming on Aug. 21. That's Monday. That’s when the moon will move between the sun and Earth, all but blotting out the sun in certain parts of the U.S. Places in the path of totality will see day turn to night for a brief time. The rest of the U.S. will be treated to a partial eclipse, where some but not all of the sun is blocked by the moon. There’s a lot out there about the eclipse. The following are a few random facts you might not yet have heard. Leigh Morgan | AL.com Don't Edit There could be "earthshine" The moon won’t turn black during the eclipse. According to NASA the moon will be very faintly illuminated by “earthshine.” However, the corona of the sun will be too bright for Earthlings to see it. Don't Edit The position of the main players At the time of the Aug. 21 eclipse, the Earth will be 94.08 million miles from the sun, and the moon will be more than 227,203 miles from the surface of the Earth. Don't Edit There's another coming up relatively soon At any spot on Earth a total eclipse happens only once every 100 years or so, according to NASA. However, the next total solar eclipse visible from the continental U.S. will be on April 8, 2024. Don't Edit The solar eclipse diet? According to NASA you will be a little lighter during the eclipse — about 1.7 ounces, in fact. Scientists got this by using Newton’s Law of Gravity and throwing in the effects of centrifugal force. However, this same effect happens whenever there’s a new moon, or every 28 days. Don't Edit Don't Edit The first eclipse photo The first photo of a total solar eclipse was taken on July 28, 1851, according to NASA. The Royal Prussian Observatory at Konigsberg (now Kaliningrad, in Russia) commissioned Johann Julius Friedrich Berkowski to record a still image of the event. Don't Edit The hottest show around It’s dangerous to look at the sun without proper eye protection. But it can still be uncomfortable to look at the sun even with protective eyewear, according to NASA. That’s because infrared energy from the sun will literally heat up your eyes. NASA said that overheating the eye can be dangerous as well, and it’s important to look away frequently in the periods before and after totality to let your eyeballs cool off. Don't Edit Chasing the eclipse by air A team of NASA-funded scientists plan to follow the shadow of the Moon in two retrofitted WB-57F jet planes on Aug. 21. From that vantage point the eclipse will last almost three times as long as for those on the ground. Taking observations from twin telescopes mounted on the noses of the planes, the scientists will ­­­­­capture the clearest images of the Sun’s outer atmosphere — the corona — to date, according to NASA. Don't Edit It's been a long time coming According to NASA the last total solar eclipse viewed from the continental United States was on Feb. 26, 1979. Its path passed through Washington, Oregon, Idaho, Montana and North Dakota. The Aug. 21, 2017, eclipse will be the first time since 1918 that one will travel coast to coast. Don't Edit A (brief) break from the heat The temperature could take a brief drive if you're in the path of totality. "It would probably be equal to the typical daytime minus nighttime temperature difference at that time of year and location on the Earth," NASA said. "It would be modified a bit by the fact that it only lasts a few minutes, which means the environment would not have had much time to thermally respond to its lowest temperature." Don't Edit Don't Edit Leigh Morgan Fast-moving moon According to NASA the moon’s shadow travels at more than 1,242 miles per hour, which is why totality only lasts 2-5 minutes at one location. The longest duration for a total solar eclipse is about 7.5 minutes. The August 21, 2017, total solar eclipse will last a maximum of 2 minutes 43 seconds, according to NASA. About 70 percent of eclipses last longer than this. Don't Edit RECOMMENDED There's an end date for eclipses Total eclipses of the sun won’t go on forever. That’s because the moon’s orbit is slowly but steadily getting larger, according to NASA. At the current rate that the moon's orbit is increasing, it will take over 600 million years for the last total solar eclipse to occur. Don't Edit
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[Skip to Main Content](https://www.al.com/news/2017/08/solar_eclipse_2017_think_youve.html#main) Set weather Back To Main Menu Close Customize Your Weather Set Your Location: Enter City and State or Zip Code [![al’s Logo](https://www.al.com/pf/resources/images/al/logos/logo_main.svg?d=1764)![al’s Logo](https://www.al.com/pf/resources/images/al/logos/logo_main_sm.svg?d=1764)](https://www.al.com/) All Alabama - [Birmingham](https://www.al.com/birmingham) - [Huntsville](https://www.al.com/huntsville) - [Mobile](https://www.al.com/mobile) - [Montgomery](https://www.al.com/montgomery) - [Tuscaloosa](https://www.al.com/tuscaloosa) - [Anniston/Gadsden](https://www.al.com/anniston-gadsden) - [Beaches](https://www.al.com/beaches) - [All Alabama](https://www.al.com/alabama) Subscribe Sign in - [Sign in](https://www.al.com/news/2017/08/solar_eclipse_2017_think_youve.html) - [Create account](https://www.al.com/news/2017/08/solar_eclipse_2017_think_youve.html) - [Newsletters](http://subscription.al.com/newsletters/) - [Custom Alerts](https://www.al.com/customalerts/) - [Newspapers.com Archive](https://archives.al.com/?utm_campaign=menuList&utm_source=web) - [Help/FAQ](https://www.al.com/digitalsubscription/faq/) Close # Solar eclipse 2017: Think you've read everything yet? Here are a few things you may not know - Published: Aug. 19, 2017, 10:00 a.m. By - [Leigh Morgan](https://www.al.com/staff/lbmorgan/ "Leigh Morgan") You'd have to be totally off the grid to *not* know there's a solar eclipse coming on Aug. 21. That's Monday. That’s when the moon will move between the sun and Earth, all but blotting out the sun in certain parts of the U.S. Places in the path of totality will see day turn to night for a brief time. The rest of the U.S. will be treated to a partial eclipse, where some but not all of the sun is blocked by the moon. There’s a lot out there about the eclipse. The following are a few random facts you might not yet have heard. [Leigh Morgan \| AL.com](http://connect.al.com/staff/lbmorgan/posts.html) Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260297-standard.jpg?auth=f4bb4e800fd0bf4420e3389098053d641968c47481bc3b3c6b05bc9f1c52b2ec&width=1280&smart=true&quality=90) **There could be "earthshine"** The moon won’t turn black during the eclipse. According to NASA the moon will be very faintly illuminated by “earthshine.” However, the corona of the sun will be too bright for Earthlings to see it. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260300-standard.jpg?auth=2ca224347713604f0866d20bc8a521dd4e1f93865f99d2a180f13edcb3c83e63&width=1280&smart=true&quality=90) **The position of the main players** At the time of the Aug. 21 eclipse, the Earth will be 94.08 million miles from the sun, and the moon will be more than 227,203 miles from the surface of the Earth. Don't Edit > If you arn't going to get to see [\#Eclipse2017](https://twitter.com/hashtag/Eclipse2017?src=hash&ref_src=twsrc%5Etfw) as a total Eclipse you only have to wait until 2024 to get your chance in Texas! [pic.twitter.com/9uY8MGI3TF](https://t.co/9uY8MGI3TF) > > — NWS Austin/San Antonio (@NWSSanAntonio) [August 17, 2017](https://twitter.com/NWSSanAntonio/status/898265676514590720?ref_src=twsrc%5Etfw) **There's another coming up relatively soon** At any spot on Earth a total eclipse happens only once every 100 years or so, according to NASA. However, the next total solar eclipse visible from the continental U.S. will be on April 8, 2024. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2Fsolar-eclipse-scalesjpg-965a63ccb8a05902.jpg?auth=b6f0bc0f6e16a0c16b8b4e692c9c235f8391b16489a91cf58bf58c29d602df2b&width=1280&smart=true&quality=90) **The solar eclipse diet?** According to NASA you will be a little lighter during the eclipse — about 1.7 ounces, in fact. Scientists got this by using Newton’s Law of Gravity and throwing in the effects of centrifugal force. However, this same effect happens whenever there’s a new moon, or every 28 days. Don't Edit Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2Ffirst-photo-of-eclipsejpg-ac1f0a282a2cd7d0.jpg?auth=49fb22d4b86b40f572a244ed43dbf3121cee791a872369dc0beacbfd276f2955&width=1280&smart=true&quality=90) **The first eclipse photo** The first photo of a total solar eclipse was taken on July 28, 1851, according to NASA. The Royal Prussian Observatory at Konigsberg (now Kaliningrad, in Russia) commissioned Johann Julius Friedrich Berkowski to record a still image of the event. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260575-standard.jpeg?auth=e1fbd7cadc18532f1df5537b3826dc60d42e229c994928449bfc6f8a5b6854d2&width=1280&smart=true&quality=90) **The hottest show around** It’s dangerous to look at the sun without proper eye protection. But it can still be uncomfortable to look at the sun even with protective eyewear, according to NASA. That’s because infrared energy from the sun will literally heat up your eyes. NASA said that overheating the eye can be dangerous as well, and it’s important to look away frequently in the periods before and after totality to let your eyeballs cool off. Don't Edit Watch **Chasing the eclipse by air** A team of NASA-funded scientists plan to follow the shadow of the Moon in two retrofitted WB-57F jet planes on Aug. 21. From that vantage point the eclipse will last almost three times as long as for those on the ground. Taking observations from twin telescopes mounted on the noses of the planes, the scientists will ­­­­­capture the clearest images of the Sun’s outer atmosphere — the corona — to date, according to NASA. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260387-standard.jpg?auth=2bf4702cfd7e4ebce9346e8ccd44b8812b309b403ee1d2f7bf0a578ae00ff904&width=1280&smart=true&quality=90) **It's been a long time coming** According to NASA the last total solar eclipse viewed from the continental United States was on Feb. 26, 1979. Its path passed through Washington, Oregon, Idaho, Montana and North Dakota. The Aug. 21, 2017, eclipse will be the first time since 1918 that one will travel coast to coast. Don't Edit > 🤓Did you know - Temperature can drop 15-20° during a total eclipse. [@NWS](https://twitter.com/NWS?ref_src=twsrc%5Etfw) forecast: <https://t.co/VLVvs3kJd6> [\#TheMoreYouKnow](https://twitter.com/hashtag/TheMoreYouKnow?src=hash&ref_src=twsrc%5Etfw) [\#Eclipse2017](https://twitter.com/hashtag/Eclipse2017?src=hash&ref_src=twsrc%5Etfw) [pic.twitter.com/veHsNoiyJJ](https://t.co/veHsNoiyJJ) > > — NWS Mobile (@NWSMobile) [August 16, 2017](https://twitter.com/NWSMobile/status/897920401648623616?ref_src=twsrc%5Etfw) **A (brief) break from the heat** The temperature could take a brief drive if you're in the path of totality. "It would probably be equal to the typical daytime minus nighttime temperature difference at that time of year and location on the Earth," NASA said. "It would be modified a bit by the fact that it only lasts a few minutes, which means the environment would not have had much time to thermally respond to its lowest temperature." Don't Edit Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260401-standard.jpg?auth=91ffcb2cec2e9e8e0dfc359a8e51535823f7b715069380bc5da42c67df375008&width=1280&smart=true&quality=90) *Leigh Morgan* **Fast-moving moon** According to NASA the moon’s shadow travels at more than 1,242 miles per hour, which is why totality only lasts 2-5 minutes at one location. The longest duration for a total solar eclipse is about 7.5 minutes. The August 21, 2017, total solar eclipse will last a maximum of 2 minutes 43 seconds, according to NASA. About 70 percent of eclipses last longer than this. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260590-standard.jpg?auth=461244b2a539466ee5f79bb45634f01e10c114e115cc0a99e8b9385c3b66a18e&width=1280&smart=true&quality=90) RECOMMENDED [Alabama Power can continue charging solar power users a fee, federal judge rulesMar. 28, 2026, 2:10 a.m.](https://www.al.com/news/2026/03/alabama-power-can-continue-charging-solar-power-users-a-fee-federal-judge-rules.html) [Alabama lawmakers in race against clock to halt massive solar farm project: ‘Slow it down’Mar. 24, 2026, 11:17 a.m.](https://www.al.com/news/2026/03/alabama-lawmakers-in-race-against-clock-to-halt-massive-solar-farm-project-slow-it-down.html) **There's an end date for eclipses** Total eclipses of the sun won’t go on forever. That’s because the moon’s orbit is slowly but steadily getting larger, according to NASA. At the current rate that the moon's orbit is increasing, it will take over 600 million years for the last total solar eclipse to occur. 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Readable Markdown
You'd have to be totally off the grid to *not* know there's a solar eclipse coming on Aug. 21. That's Monday. That’s when the moon will move between the sun and Earth, all but blotting out the sun in certain parts of the U.S. Places in the path of totality will see day turn to night for a brief time. The rest of the U.S. will be treated to a partial eclipse, where some but not all of the sun is blocked by the moon. There’s a lot out there about the eclipse. The following are a few random facts you might not yet have heard. [Leigh Morgan \| AL.com](http://connect.al.com/staff/lbmorgan/posts.html) Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260297-standard.jpg?auth=f4bb4e800fd0bf4420e3389098053d641968c47481bc3b3c6b05bc9f1c52b2ec&width=1280&smart=true&quality=90) **There could be "earthshine"** The moon won’t turn black during the eclipse. According to NASA the moon will be very faintly illuminated by “earthshine.” However, the corona of the sun will be too bright for Earthlings to see it. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260300-standard.jpg?auth=2ca224347713604f0866d20bc8a521dd4e1f93865f99d2a180f13edcb3c83e63&width=1280&smart=true&quality=90) **The position of the main players** At the time of the Aug. 21 eclipse, the Earth will be 94.08 million miles from the sun, and the moon will be more than 227,203 miles from the surface of the Earth. Don't Edit **There's another coming up relatively soon** At any spot on Earth a total eclipse happens only once every 100 years or so, according to NASA. However, the next total solar eclipse visible from the continental U.S. will be on April 8, 2024. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2Fsolar-eclipse-scalesjpg-965a63ccb8a05902.jpg?auth=b6f0bc0f6e16a0c16b8b4e692c9c235f8391b16489a91cf58bf58c29d602df2b&width=1280&smart=true&quality=90) **The solar eclipse diet?** According to NASA you will be a little lighter during the eclipse — about 1.7 ounces, in fact. Scientists got this by using Newton’s Law of Gravity and throwing in the effects of centrifugal force. However, this same effect happens whenever there’s a new moon, or every 28 days. Don't Edit Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2Ffirst-photo-of-eclipsejpg-ac1f0a282a2cd7d0.jpg?auth=49fb22d4b86b40f572a244ed43dbf3121cee791a872369dc0beacbfd276f2955&width=1280&smart=true&quality=90) **The first eclipse photo** The first photo of a total solar eclipse was taken on July 28, 1851, according to NASA. The Royal Prussian Observatory at Konigsberg (now Kaliningrad, in Russia) commissioned Johann Julius Friedrich Berkowski to record a still image of the event. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260575-standard.jpeg?auth=e1fbd7cadc18532f1df5537b3826dc60d42e229c994928449bfc6f8a5b6854d2&width=1280&smart=true&quality=90) **The hottest show around** It’s dangerous to look at the sun without proper eye protection. But it can still be uncomfortable to look at the sun even with protective eyewear, according to NASA. That’s because infrared energy from the sun will literally heat up your eyes. NASA said that overheating the eye can be dangerous as well, and it’s important to look away frequently in the periods before and after totality to let your eyeballs cool off. Don't Edit **Chasing the eclipse by air** A team of NASA-funded scientists plan to follow the shadow of the Moon in two retrofitted WB-57F jet planes on Aug. 21. From that vantage point the eclipse will last almost three times as long as for those on the ground. Taking observations from twin telescopes mounted on the noses of the planes, the scientists will ­­­­­capture the clearest images of the Sun’s outer atmosphere — the corona — to date, according to NASA. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260387-standard.jpg?auth=2bf4702cfd7e4ebce9346e8ccd44b8812b309b403ee1d2f7bf0a578ae00ff904&width=1280&smart=true&quality=90) **It's been a long time coming** According to NASA the last total solar eclipse viewed from the continental United States was on Feb. 26, 1979. Its path passed through Washington, Oregon, Idaho, Montana and North Dakota. The Aug. 21, 2017, eclipse will be the first time since 1918 that one will travel coast to coast. Don't Edit **A (brief) break from the heat** The temperature could take a brief drive if you're in the path of totality. "It would probably be equal to the typical daytime minus nighttime temperature difference at that time of year and location on the Earth," NASA said. "It would be modified a bit by the fact that it only lasts a few minutes, which means the environment would not have had much time to thermally respond to its lowest temperature." Don't Edit Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260401-standard.jpg?auth=91ffcb2cec2e9e8e0dfc359a8e51535823f7b715069380bc5da42c67df375008&width=1280&smart=true&quality=90) *Leigh Morgan* **Fast-moving moon** According to NASA the moon’s shadow travels at more than 1,242 miles per hour, which is why totality only lasts 2-5 minutes at one location. The longest duration for a total solar eclipse is about 7.5 minutes. The August 21, 2017, total solar eclipse will last a maximum of 2 minutes 43 seconds, according to NASA. About 70 percent of eclipses last longer than this. Don't Edit ![](https://www.al.com/resizer/v2/https%3A%2F%2Fimage.al.com%2Fhome%2Fbama-media%2Fwidth2048%2Fimg%2Fnews_impact%2Fphoto%2F23260590-standard.jpg?auth=461244b2a539466ee5f79bb45634f01e10c114e115cc0a99e8b9385c3b66a18e&width=1280&smart=true&quality=90) RECOMMENDED **There's an end date for eclipses** Total eclipses of the sun won’t go on forever. That’s because the moon’s orbit is slowly but steadily getting larger, according to NASA. At the current rate that the moon's orbit is increasing, it will take over 600 million years for the last total solar eclipse to occur. Don't Edit
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