we could not find a solar eclipse every day, every week, every month, and even every year. But solar eclipses can be taken into account when it will happen and where we can see the solar eclipse. In the discussion of this article will discuss 25 important list of solar eclipses. We will remember the historic case as the greatest thing we have ever seen!
  1. It will be the first total solar eclipse in the continental US in 38 years
    The latter occurred February 26, 1979. Unfortunately, not many people saw it as a truncated only five states in the northwest and bad weather can lead we could not see a solar eclipse. When we want to view a solar eclipse that has happened we must go back to March 7, 1970.
  2. A solar eclipse is the lineup of the Sun, Moon, and Earth.
    Month, directly between the Sun and Earth, cast a shadow on our planet. If we are in the dark part of the shadow (umbra), we will see a total eclipse. If we are in the light (the penumbra), we will see a partial eclipse. 
  3. A solar eclipse happens at New Moon
    The Moon has to be between the Sun and Earth for a solar eclipse to occur. The only lunar phase when that happens is New Moon.
  4. Solar eclipses do not happen at every New Moon
    The reason is that the Moon orbit tilts 5° to Earth orbit around the Sun. Astronomers call the two intersections of these paths nodes. Eclipses only occur when the Sun lies at one node and the Moon is at its New (for solar eclipses) or Full (for lunar eclipses) phase. During most (lunar) months, the Sun lies either above or below one of the nodes, and no eclipse happens.
  5. Eclipse totalities are different lengths
    The reason the total phases of solar eclipses vary in time is because Earth is not always at the same distance from the Sun and the Moon is not always the same distance from Earth. The Earth-Sun distance varies by 3 percent and the Moon-Earth distance by 12 percent. The result is that the Moon apparent diameter can range from 7 percent larger to 10 percent smaller than the Sun.
  6.  Solar eclipses occur between Saros cycles
    Similar solar and lunar eclipses recur every 6,585.3 days (18 years, 11 days, 8 hours). Scientists call this length of time a Saros cycle. Two eclipses separated by one Saros cycle are similar. They occur at the same node, the Moon distance from Earth is nearly the same, and they happen at the same time of year.
  7. It is all about magnitude and obscuration
    Astronomers categorize each solar eclipse in terms of its magnitude and obscuration, and I do not want we to be confused when we encounter these terms. The magnitude of a solar eclipse is the percent of the Sun diameter that the Moon covers during maximum eclipse. The obscuration is the percent of the Sun total surface area covered at maximum. Here is an example: If the Moon covers half the Sun diameter (in this case the magnitude equals 50 percent), the amount of obscuration (the area of the Sun's disk the Moon blots out) will be 39.1 percent.
  8. It's all about totality
    Not to cast a shadow on things, but likening a partial eclipse to a total eclipse is like comparing almost dying to dying. We know that 48 percent sounds like a lot. It is not. We wo not even notice surroundings getting dark. And it does not matter whether the partial eclipse above location is 48, 58, or 98 percent. Only totality reveals the true celestial spectacle: the diamond ring, the Sun glorious corona, strange colors in our sky, and seeing stars in the daytime.
  9. We want to be on the center line. This probably is not a revelation, but the Moon shadow is round. If it were square, it would not matter where we viewed totality. People across its width would experience the same duration of darkness. The shadow is round, however, so the longest eclipse occurs at its center line because that where we will experience the Moon shadow full width.
  10. Everyone in the continental U.S. will see at least a partial eclipse
    In fact, if we have clear skies on eclipse day, the Moon will cover at least 48 percent of the Sun’s surface. And that was from the northern tip of Maine.
  11. The center line crosses through 10 states
    After a great west-to-east path across Oregon, the center line takes roughly nine minutes to cross a wide swath of Idaho, entering the western part of the state just before 11:25 a.m. MDT and leaving just before 11:37 a.m. MDT. Next up is Wyoming, where the umbral center line dwells until just past 11:49 a.m. MDT. The center line hits the very northeastern part of Kansas at 1:04 p.m. CDT and enters Missouri a scant two minutes later. At 1:19, the shadow midpoint crosses the Mississippi River, which at that location is the state border with Illinois. The center line leaves Illinois at its Ohio River border with Kentucky just past 1:24 p.m. CDT. Totality for that state starts there two minutes earlier and lasts until nearly 1:29 p.m. CDT. The center line crosses the border into Tennessee around 1:26 p.m. CDT. Then, just past the midpoint of that state, the time zone changes to Eastern. The very northeastern tip of Georgia encounters the center line from just past 2:35 p.m. EDT until not quite 2:39 p.m. EDT. Finally, it’s South Carolina turn. The last of the states the center line crosses sees its duration from 2:36 p.m. EDT to 2:39 p.m. EDT. One further note: The extreme northeast part of Georgia does experience some totality, but at no point does the center line pass through that state.
  12. First contact in Oregon
    If we want to be the first person to experience totality in the continental U.S., be on the waterfront at Government Point, Oregon, at 10:15:56.5 a.m. PDT. There, the total phase lasts 1 minute, 58.5 seconds.
  13. Cool things are afoot before and after totality
    Although the big payoff is the exact lineup of the Sun, the Moon, and location, keep we eyes open during the partial phases that lead up to and follow it. As we view the beginning through a safe solar filter, the universe will set we mind at ease when we see the Moon take the first notch out of the Sun disk. Around the three-quarters mark, we will start to notice that shadows are getting sharper. The reason is that the Sun disk is shrinking, literally approaching a point, and a smaller light source produces better-defined shadows. At about 85 percent coverage, someone we are with will see Venus 34° west-northwest of the Sun. If any trees live at we site, we may see their leaves act like pinhole cameras as hundreds of crescent Sun appear in their shadows.
  14. Totality lasts a maximum of 2 minutes and 40.2 secondsThat’s it. To experience that length, we will need to be slightly south of Carbondale, Illinois, in Giant City State Park. we might think about getting there early.
  15. The end of the eclipse for the U.S. is not on landThe center line last contact with the U.S. occurs at the Atlantic Ocean edge just southeast of Key Bay, South Carolina. we pretty sure the crowd wont not be huge there.
  16. This eclipse will be the most viewed ever thereWe base this proclamation on four factors: 1) the attention it will get from the media; 2) the superb coverage of the highway system in our country; 3) the typical weather on that date; and 4) the vast number of people who will have access to it from nearby large cities.
  17. Only one large city has a great view
    Congratulations if we are one of the 609,000 people lucky enough to live in Nashville. The city center and parts north of it will experience 2+ minutes of totality. Unfortunately, that’s the only large city with a great view. In the tally below, column 1 lists 25 other large metropolitan areas. The second column shows the amount of the Sun’s surface the Moon will cover as seen by viewers in each city.
    • Atlanta                     97 percent
    • Boston                      63 percent
    • Chicago                    87 percent
    • Cincinnati                 91 percent
    • Dallas                       76 percent
    • Denver                      92 percent
    • Detroit                      79 percent
    • Houston                    67 percent
    • Indianapolis              91 percent
    • Las Vegas                  72 percent
    • Los Angeles              62 percent
    • Memphis                   93 percent
    • Miami                       78 percent
    • Milwaukee                83 percent
    • Minneapolis              83 percent
    • New Orleans             75 percent
    • New York City          72 percent
    • Oklahoma City          84 percent
    • Philadelphia              75 percent
    • Phoenix                     63 percent
    • Pittsburgh                  81 percent
    • Portland                    99 percent
    • Salt Lake City           91 percent
    • Seattle                       92 percent
    • Washington, D.C.     81 percent
    Now a brief follow-up: about half of both Kansas City (pop. = 464.000) and Saint Louis (pop. = 318.000) lie within the path of totality. Unfortunately, the center line doesn’t pass through either of them. An educated guess then, tells me that most residents interested in the eclipse will drive 30 minutes or so for an extra two minutes of totality.
  18. A few small cities are well-placedHere’s a list of smaller municipalities either on the center line or near it with their approximate populations.
    • Carbondale, Illinois                  26.000
    • Casper, Wyoming                     58.000
    • Columbia, Missouri                113.000
    • Columbia, South Carolina      132.000
    • Grand Island, Nebraska            50.000
    • Greenville, South Carolina       61.000
    • Hopkinsville, Kentucky            33.000
    • Idaho Falls, Idaho                     58.000
    • Jefferson City, Missouri            43.000
    • Paducah, Kentucky                   25.000
    • Saint Joseph, Missouri              77.000
    • Salem, Oregon                        157.000
  19. Totality is safe to look atDuring the time the Moon’s disk covers that of the Sun, it’s safe to look at the eclipse. In fact, to experience the awesomeness of the event, we must look at the Sun without a filter during totality.
  20. Yes, the Sun a lot bigger
    Our daytime star diameter is approximately 400 times larger than that of the Moon. What a coincidence that it also lies roughly 400 times farther away. This means both disks appear to be the same size.
  21. Maximum totality is not the longest possible in 2017The longest possible duration of the total phase of a solar eclipse is 7 minutes and 32 seconds. Unfortunately, the next solar eclipse whose totality approaches 7 minutes won’t occur until June 13, 2132. Its 6 minutes and 55 seconds of totality will be the longest since the 7 minutes and 4 seconds of totality June 30, 1973.
  22. We won’t need a telescope
    One of the great things about the total phase of a solar eclipse is that it looks best to naked eyes. The sight of the corona surrounding the Moon’s black disk in a darkened sky is unforgettable. That said, binoculars give we a close-up view — but still at relatively low power — that we should take advantage of several times during the event.
  23. Nature will take heed
    Depending on we surroundings, as totality nears we may experience strange things. Look. we will notice a resemblance to the onset of night, though not exactly. Areas much lighter than the sky near the Sun lie all around the horizon. Shadows look different. Listen. Usually, any breeze will dissipate and birds (many of whom will come in to roost) will stop chirping. It is quiet. Feel. A 10°–15° F drop in temperature is not unusual.
  24. The future is bright but long
    The next total solar eclipse over the continental U.S. occurs April 8, 2024. It’s a good one, too. Depending on where we are (on the center line), the duration of totality lasts at least 3 minutes and 22 seconds on the east coast of Maine and stretches to 4 minutes and 27 seconds in southwestern Texas. After that eclipse, it’s a 20-year wait until August 23, 2044 (and, similar to the 1979 event, that one is visible only in Montana and North Dakota). Total solar eclipses follow in 2045 and 2078.
  25. This event will happen!
    As astronomers (professional or amateur), some of the problems we have are due to the uncertainty and limited visibility of some celestial events. Comets may appear bright if their compositions are just so. Meteor showers might reach storm levels if we pass through a thick part of the stream. (Oh, and the best views are after midnight.) A supernova as bright as a whole galaxy is visible now, but we need a telescope to view it. In contrast, this solar eclipse will occur when we say, where we say, for how long we say, and in the daytime, no less. Guaranteed!
Source : http://cs.astronomy.com/asy/b/astronomy/archive/2014/08/05/25-facts-you-should-know-about-the-august-21-2017-total-solar-eclipse.aspx

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