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This Week's Total Lunar Eclipse Is the Longest of the Century (washingtonpost.com)

On July 27, the moon is set to glide through Earth's shadow to create a red total lunar eclipse for one hour and 43 minutes -- the longest such eclipse of the young century. Viewers in the United States will have to watch the eclipse online as they're on the wrong side of the world. "Folks in western Africa, part of Europe, the Middle East and India will only have to look up to the sky to catch the deep-copper-toned totality in person," reports The Washington Post. From the report: "What makes the upcoming one special is that it occurs at nearly the same time as the year's second-most-distant lunar apogee (the monthly moment when the moon is most distant from Earth) and the moon passes almost smack through the center of Earth's shadow," astronomer Geoff Chester of the Naval Observatory said. He continued: "This will make it the longest-duration total lunar eclipse of the century. It's also cool that [the eclipse] occurs on the night that Mars reaches opposition, so (for people on the other side of the world) you'll have a red moon six degrees north of the Red Planet." All eclipses belong to eclipse families called saros. In this case, this eclipse is part of Saros 139, and it is No. 38 in a family of 71 that started June 10, 1351. This saros will last until July 24, 2613, per NASA. While technically this will be the longest eclipse of the century, the two previous lunar eclipses in this series -- July 16, 2000 (No. 37, Saros 139) and July 6, 1982 (No. 36, Saros 139) -- lasted longer than this one. In fact, the July 16, 2000, lunar eclipse lasted about three minutes longer. But remember, astronomers count the year 2000 as part of the last century.

Throughout the Eastern time zone, according to NASA and the U.S. Naval Observatory, the lunar eclipse (penumbral phase) starts at 1:14 p.m. and partiality occurs at 2:24 p.m. Totality starts at 3:30 p.m., with the maximum totality at 4:21 p.m. Totality will end at 5:13 p.m., and the partial eclipse ends at 6:19 p.m. Everything is over by 7:28 p.m. Unfortunately, the moon will not have risen anywhere in the United States for viewing during this window.
If you're not able to watch it locally, you can tune to the Weather Channel app, the website Slooh, or TimeandDate.com. The NBC News streaming network is also showing the eclipse at 4 p.m. on July 27.

52 comments

  1. Nice, but... by bickerdyke · · Score: 2

    lunar eclipses aren't that spectacular. Like going through a full cycle of moon phases in one night. But still, you should have watched one.

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    bickerdyke
    1. Re:Nice, but... by hcs_$reboot · · Score: 5, Insightful

      lunar eclipses aren't that spectacular.

      Because you're not at the right place. It's way more spectacular from the moon.

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    2. Re:Nice, but... by bickerdyke · · Score: 1

      Insightfull,

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      bickerdyke
    3. Re:Nice, but... by Ecuador · · Score: 2

      Hehe, good point. Although what would then be a solar eclipse from the moon is still not as spectacular as a solar eclipse from earth where the similar angular size of the moon and sun enable us to see the sun's magnificent corona. You would get to see though, the atmosphere of the earth light up like a thin ring, which while less spectacular than the corona (at least for repeated viewings) would certainly give you more food for thought.
      To get back to the original topic, a lunar eclipse can be beautiful in itself, especially if the atmospheric conditions give you that nice deep red color. For example here is a timelapse video and photos I took from the 9/2015 lunar eclipse with an 80mm apochromatic telescope. Quite nice if I may say so.

      --
      Violence is the last refuge of the incompetent. Polar Scope Align for iOS
    4. Re:Nice, but... by Snard · · Score: 2

      I am curious... are there any cameras on the lunar surface that are still operational? It would be interesting to have them take pictures of the Earth during an eclipse. I expect the earth would look like a dark disk with small lights scattered around on it (assuming they are visible from the moon?), and perhaps a sort of "coronal" ring where the light diffuses through the atmosphere.

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      - Mike
    5. Re:Nice, but... by SharpFang · · Score: 1

      There are - ask the Chinese!

      Chang'e 3 is fully operational (except for the rover.)

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    6. Re: Nice, but... by Anonymous Coward · · Score: 1

      The earth would be surrounded by a bright red halo. The view of a million simultaneous sunrises and sunsets. That's why the moon often turns red during totality.

  2. I am Reedy by Digital1world · · Score: 1

    I am ready for it

  3. Wikipedia entry here! by Anonymous Coward · · Score: 0

    C'mon, editors. Show some balls. Here is a (GASP!) free and non-paywalled, and probably more informative page on this event.

    Sheesh. Peddling paywalled content whereas there are much better informed free alternatives. What happened to the internet utopia? What's happening to the commons?

    This is slashdot, FFS!

    1. Re:Wikipedia entry here! by Opportunist · · Score: 2

      Especially considering that 9 out of 10 times the paywalled articles copy/paste from Wikipedia, and all they really add is the ads around it.

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      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  4. If you're wondering if and when you can see it by MadFarmAnimalz · · Score: 4, Informative
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    Blearf. Blearf, I say.
  5. Year 2000 by dargaud · · Score: 4, Insightful

    But remember, astronomers count the year 2000 as part of the last century.

    EVERYBODY counts year 2000 as part of last century. When you count to 10, you go 1,2,3,4,5,6,7,8,9,10 and if you want to count 10 more, what do you do ? You start at 11, oh what a shocker ! Same for years and decades, centuries or millenia.

    --
    Non-Linux Penguins ?
    1. Re:Year 2000 by Anonymous Coward · · Score: 0

      But remember, astronomers count the year 2000 as part of the last century.

      EVERYBODY counts year 2000 as part of last century. When you count to 10, you go 1,2,3,4,5,6,7,8,9,10 and if you want to count 10 more, what do you do ? You start at 11, oh what a shocker ! Same for years and decades, centuries or millenia.

      Yeah but remember that this article was written by a journalist.

    2. Re:Year 2000 by Anonymous Coward · · Score: 0

      Everybody excepted creimer who is so self centered that he thinks were all still in the first century because he is 49.

    3. Re:Year 2000 by asylumx · · Score: 4, Informative

      Except, maybe, software developers who make up a large portion of this community -- because the first set of 10 would be 0-9, not 1-10...

    4. Re:Year 2000 by Anonymous Coward · · Score: 0

      Apart from the majority of the world who celebrated the change of the century and the millennium on 1 Jan 2000...

    5. Re:Year 2000 by thegarbz · · Score: 2

      EVERYBODY counts year 2000 as part of last century.

      No. Don't assume that just because you start counting at 1 you apply that example to people who weren't alive long enough to count back 2000 years. The reality is mentally there is no connection between the year 0 vs 1 and the year 2000 vs 2001. There is however plenty to mentally link the number 19 and 20 to a change in century.

      To be honest everyone seems kind of split on the topic. Historians and religious people would correctly agree that 2000 was part of the 20th century from 1901 to 2000 inclusive. They would also realise there was no year 0 with 1A.D. directly following 1B.C.

      But with the significance of the celebrations of the "turn of the century" in 2000 a lot of people who don't apply this kind of thinking and happy consider 1/1/2000 as the first day of the 21st century.

    6. Re:Year 2000 by DNS-and-BIND · · Score: 1

      1978, 1979, 1980. So 1980 is actually part of The Seventies?

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
    7. Re:Year 2000 by jfdavis668 · · Score: 1, Offtopic

      Yes, but that's not important right now. And please, stop calling me Shirley.

    8. Re:Year 2000 by PPH · · Score: 1

      We just refer to that as Clinton 8.

      --
      Have gnu, will travel.
    9. Re:Year 2000 by Anonymous Coward · · Score: 0

      When you count to 10, you go 1,2,3,4,5,6,7,8,9,10 and if you want to count 10 more

      But, when an array is allocated, it starts counting at zero.*

      A better discussion would've been to point out that the AD system starts with year 1, and in order to have 1000 years in the set called "the first millenia", the last year of that set would have a zero as the final digit. Therefore, yes, 2000 was part of "the previous millenia".

      (Not in all languages, of course. PedAnts, please turn this thread into a discussion of that specific topic.)

    10. Re:Year 2000 by Anonymous Coward · · Score: 0

      > They would also realise there was no year 0 with 1A.D. directly following 1B.C.

      Actually, it didn't. The numbering of years in the AD/BC system did not occur until the 6th Century. Prior to that years were numbered for the current ruler or some such similar starting point.

    11. Re:Year 2000 by tsa · · Score: 1

      If that were true all the millennium parties were one year too early.

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      -- Cheers!

  6. Units are important by jellomizer · · Score: 4, Insightful

    Why are we useing Eastern Standard Time for an event that cannot be seen there?
    GMT is the standard. And there is some visibility.

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    If something is so important that you feel the need to post it on the internet... It probably isn't that important.
    1. Re:Units are important by Anonymous Coward · · Score: 0

      Pacific Standard Time is THE Standard at the 3 letter agency where I work...
      --
      Dwayne Johnson's Rampage As A Kaiju ("Weird Beast") Monster Movie

    2. Re:Units are important by jellomizer · · Score: 1

      You work at the CIA (California Institute for the Arts)?

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      If something is so important that you feel the need to post it on the internet... It probably isn't that important.
    3. Re:Units are important by Anonymous Coward · · Score: 0

      I take public transit. A local bus take me down the street to pick up the express bus, the express bus drops me off in Palo Alto, and a local bus take me down the street to my job. An hour each way. Driving through Palo Alto during rush hour is insane. Since I work in government I.T., I start work at 7:00AM.
      --
      Dwayne Johnson's Rampage As A Kaiju ("Weird Beast") Monster Movie

    4. Re:Units are important by Anonymous Coward · · Score: 0

      Please report to third floor when you come in this morning, there is an IT closet to clean there. Please, don't eat the spare parts this time, those are expensive and we might still need them!

      Thank you,
      -C.J.D.

    5. Re: Units are important by Anonymous Coward · · Score: 0

      Actually UTC is the standard, not GMT.

  7. Re:Trump will be the longest served President by Anonymous Coward · · Score: 0

    "Make american eclipses great again!"

  8. Lunacy by Anne+Thwacks · · Score: 2

    Fortunately we in the UK will be spared this lunacy, as we will, in the traditional way, have the worst thunderstorms since records began (last Thursday).

    --
    Sent from my ASR33 using ASCII
    1. Re:Lunacy by Opportunist · · Score: 1

      Lemme guess, last Wednesday lightning struck the old records hall and it burned down?

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    2. Re:Lunacy by Anonymous Coward · · Score: 0

      No. In the UK nothing is allowed to burn anymore. Fire is too dangerous. Things just smolder a bit and smell strange.

    3. Re:Lunacy by Anonymous Coward · · Score: 0

      Fortunately we in the UK will be spared this lunacy....

      I see what you did there!

  9. Flat Earthers by Daralantan · · Score: 1

    I genuinely want to know how Flat Earthers explain the lunar eclipse?

    For hilarity.

    1. Re:Flat Earthers by Opportunist · · Score: 3, Insightful

      I'm pretty sure you'll find plenty of explanations in the next couple days on YouTube.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    2. Re:Flat Earthers by SharpFang · · Score: 1

      hologram camera maintenance break.

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      45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
  10. wrong side or the world, murrica by Anonymous Coward · · Score: 0

    "Viewers in the United States will have to watch the eclipse online as they're on the wrong side of the world."

    Oh, I see how it is! Or apparently we won't see how it is. It is also the Earth/Planet not World/People.

  11. A once in a lifetime for some by schizz69 · · Score: 4, Interesting

    There will be an interesting celestial event called a selenelion for NZ'ers. This is where the blood moon can be seen at the same time as the rising sun due to some sort of atmospheric refraction. Best viewed in the lower south island but still some might see it further north given a good view of the opposing horizons.

  12. Info Page by Tomahawk · · Score: 1

    Here's the NASA info page about it, including all of the times in UTC (as they should be!): https://eclipse.gsfc.nasa.gov/...

    And NASA's details on Saros 129: https://eclipse.gsfc.nasa.gov/...

  13. Trump will say this is NOT caused by man by Anonymous Coward · · Score: 0

    Trump will say this is NOT caused by man, and be correct for once.

    1. Re:Trump will say this is NOT caused by man by Anonymous Coward · · Score: 0

      > Trump will say this is NOT caused by man, and be correct for once.

      Are you sure that he won't claim that he did it, and then say that he should get a Nobel Prize for having done it?

  14. Re:Energeian Planes by Anonymous Coward · · Score: 0

    Thinking themselves wise, they became fools.

    Aren't you in the least bit disturbed by the changing shape of the shadow during the progression of the eclipse?

  15. Re:Mystery of Lawlessness by Anonymous Coward · · Score: 0

    I genuinely want to know how 'scientists' explain the lunar or solar eclipse.

    For instance, an above poster posted his own photos: http://astro.ecuadors.net/2892015-lunar-eclipse-photos-time-lapse/

    And this video shows the same thing: https://vimeo.com/253700958
    The shadow changes shape (curvature) over the course of the eclipse.

    The solar eclipse: https://vimeo.com/230976895 Red light appears on the back of the moon, the entire inside outer edge of the moon is blurred with light that shouldn't be there.

    The Man of Lawlessness - Powerful Delusion

    Now concerning the coming of our Lord Jesus Christ and our gathering together to Him, we ask you, brothers, not to be easily disconcerted or alarmed by any spirit or message or letter presuming to be from us and alleging that the day of the Lord has already come. Let no one deceive you in any way, for it will not come until the rebellion occurs and the man of lawlessness (the son of destruction) is revealed. He will oppose and exalt himself above every so-called god or object of worship. So he will seat himself in the temple of God, proclaiming himself to be God.

    Do you not remember that I told you these things while I was still with you? And you know what is now restraining him, so that he will be revealed at the proper time. For the mystery of lawlessness is already at work, but the one who now restrains it will continue until he is taken out of the way. And then the lawless one will be revealed, whom the Lord Jesus will slay with the breath of His mouth and abolish by the majesty of His arrival.

    The coming of the lawless one will be accompanied by the working of Satan, with every kind of power, sign, and false wonder, and with every wicked deception directed against those who are perishing, because they refused the love of the truth that would have saved them. For this reason, God will send them a powerful delusion so that they will believe the lie, in order that judgment will come upon all who have disbelieved the truth and delighted in wickedness.

    Energeian Planes!

  16. Re:Blood moon and death of BSD by Anonymous Coward · · Score: 0

    did netcraft confirm that BSD was dying?

  17. Wrong Side? by Anonymous Coward · · Score: 0

    How so? We're on the outside of a sphere, not a cube or dodecahedron or some crazy shape.

    If you said we're within the wrong hemisphere, I would've given you that. ;)

  18. Re: Mystery of Lawlessness by Anonymous Coward · · Score: 1

    The phases of the moon result from a relative change in the location of the light source on a sphere. An eclipse is the result of a spherical object moving into a circular shadow. It isn't the same effect and it wont look exactly the same.

  19. Flash! by dilvish_the_damned · · Score: 1

    ... no cause for alarm.

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    I think you underestimate just how much I just dont care.
  20. Re: Mystery of Lawlessness by Anonymous Coward · · Score: 0

    Agreed. But shadows also don't change shape while moving across objects when there is no perspective involved(we are within the shadow looking back to the moon, not apart from it), so look again.

    Notice that the shadow curve increases until half way, then stays the same until completion. That is a veil of darkness expanding over a sphere in 3D, not a shadow.

  21. Re:Blood moon and death of BSD by Anonymous Coward · · Score: 0

    As a matter of fact, Netcraft did confirm that BSD is dead: Netcraft 2017 Web Server Survey