Space Weather

Discussion in 'General Discussion' started by Anonymous, Jul 21, 2013.

  1. Disambiguation Global Moderator

    "Cannot be found"?
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  2. Anonymous Member

    It's a Huge MamaJama File. Nine plus megabytes, for the sake of the text.

    Fixed now! :)
  3. meep meep Member

  4. Anonymous Member

    Three views of Sunspot AR-2192 and its most intense flare captured on Oct. 24th, 2014:




    This picture was is a color combination of images made at three different wavelengths of extreme ultraviolet light; 193 angstroms shown in blue, 171 angstroms in white, and 304 angstroms in red.

    Solar active region AR2192 was the largest recorded sunspot group of the last 24 years.

    The exceptionally sharp composite image has been processed with a new mathematical algorithm (NAFE) that adapts to noise and brightness in extreme ultraviolet image data to reliably enhance small details.
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  5. Disambiguation Global Moderator

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  6. Disambiguation Global Moderator

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  7. Disambiguation Global Moderator

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  8. meep meep Member

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  9. snippy Member

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  10. Anonymous Member

  11. snippy Member

    Sorry yes - Guess I'm spacey today.:p
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  12. Disambiguation Global Moderator

    Ooof bad pun
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  13. Anonymous Member

    From the NASA Astronomy Picture of the day:


    Eta Carinae and the Expanding Homunculus Nebula

    Image Credit: Hubble, NASA, ESA; Processing & Copyright: First Light, J. L. Dauvergne, P. Henarejos

    Explanation: How did the Eta Carinae star system create this unusual expanding nebula?

    No one knows for sure. About 170 years ago, the southern star system Eta Carinae (Eta Car) mysteriously became the second brightest star system in the night sky. Twenty years later, after ejecting more mass than our Sun, Eta Car unexpectedly faded.

    Somehow, this outburst appears to have created the Homunculus Nebula.

    The three-frame video features images of the nebula taken by the Hubble Space Telescope in 1995, 2001, and 2008. The Homunculus nebula's center is lit by light from a bright central star, while the surrounding regions are expanding lobes of gas laced with filaments of dark dust.

    Jets bisect the lobes emanating from the central stars. Expanding debris includes streaming whiskers and bow shocks caused by collisions with previously existing material.

    Eta Car still undergoes unexpected outbursts, and its high mass and volatility make it a candidate to explode in a spectacular supernova sometime in the next few million years.
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  14. Anonymous Member

    Alexander Gerst’s Earth timelapses

    From Jerry Coyne's Blog:

    From the European Space Agency’s Youtube channel comes this video showing timelapses of sunrises, auroras, docking sequences and city flyovers.

    The notes say: Often while conducting scientific experiments or docking spacecraft Alexander would set cameras to automatically take pictures at regular intervals. Combining these images gives the timelapse effect seen in this video.

    Amazing at full-screen. I'm most amazed at the trust these people have invested in the technology.

    You can find out more about Gerst’s Blue Dot mission here.
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  15. Anonymous Member


    Explanation: Why are the regions above sunspots so hot? Sunspots themselves are a bit cooler than the surrounding solar surface because the magnetic fields that create them reduce convective heating. It is therefore unusual that regions overhead -- even much higher up in the Sun's corona -- can be hundreds of times hotter.

    To help find the cause, NASA directed the Earth-orbiting Nuclear Spectroscopic Telescope Array (NuSTAR) satellite to point its very sensitive X-ray telescope at the Sun.

    Featured above is the Sun in ultraviolet light, shown in a red hue as taken by the orbiting Solar Dynamics Observatory (SDO).

    Superimposed in false-colored green and blue is emission above sunspots detected by NuSTAR in different bands of high-energy X-rays, highlighting regions of extremely high temperature.

    Clues about the Sun's atmospheric heating mechanisms may not only come from this initial image, but future NuSTAR images aimed at finding hypothesized nanoflares, brief bursts of energy that may drive the unusual heating.
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  16. Ogsonofgroo Member

    Nat Geo ran an issue a couple of years ago with all sorts of different sun shots, pretty damn amazing stuff! That's a great pic above ^^^, thanks Night owl!
  17. Anonymous Member

    You're welcome.

    Heat (and cold) signatures have been known about for quite some time, but finding it applied to sun studies these days is work I think is fascinating. The abilities to photograph inside and outside the boundaries of visible light has become awesome!


    Astronomy! Fuck Yeah! :)
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  18. Anonymous Member

    If the planets were all as close to the earth as the moon...

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  19. Ogsonofgroo Member

  20. snippy Member

  21. Anonymous Member

    Solar Cycle 24:


    Attached Files:

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  22. Disambiguation Global Moderator

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  23. Anonymous Member

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  24. snippy Member

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  25. snippy Member

    "An R3 (Strong) Radio Blackout peaked at 1622 UTC (12:22pm EDT) today, March 11," SWPC officials wrote in an online update. "This is yet another significant solar flare from Active Region 12297 as it marches across the solar disk. This is the largest flare the region has produced so far, after producing a slew of R1 (Minor) and R2 (Moderate) Radio Blackouts over the past few days."
    It's unclear at the moment if a CME is associated with today's event. However, the SWPC has already issued a minor geomagnetic storm warning for Friday (March 13) as a result of three CMEs the sun unleashed on Monday (March 9).
    Enril spiral shows nothing: 00:44:00&window=-1&cygnetId=261
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  26. Anonymous Member

    From yesterday:


    SOHO latest.jpg

    Today's report:

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  27. Disambiguation Global Moderator

  28. Anonymous Member

    The fact that we live at the bottom of a deep gravity well, on the surface of a gas covered planet going around a nuclear fireball 90 million miles away and think this to be normal is obviously some indication of how skewed our perspective tends to be.

    ~ Douglas Adams, author (11 Mar 1952-2001)
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  29. snippy Member

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  30. Anonymous Member

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  31. snippy Member

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  32. snippy Member

    Nice summary with dramatic reading of yesterdays events :)
    "No fear. Be safe everyone."

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  33. Anonymous Member


    Explanation: What does the Earth look like during a total solar eclipse? It appears dark in the region where people see the eclipse, because that's where the shadow of the Moon falls. The shadow spot actually shoots across the Earth at nearly 2,000 kilometers per hour, darkening locations in its path for only a few minutes before moving on. The featured image shows the Earth during the total solar eclipse of 2006 March, as seen from the International Space Station. On Friday the Moon will move in front of the Sun once again, casting another distorted circular shadow that, this time, will zip over part of the north Atlantic Ocean.
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  34. Anonymous Member

  35. Anonymous Member

    Suiting Up for the Moon
    Image Credit & Copyright: Robert Nemiroff (Michigan Tech. U.)

    Mooooonwalk_rjn_3264 copy 2.jpg

    Explanation: How will cows survive on the Moon? One of the most vexing questions asked about space, scientists have spent decades debating this key issue. Finally, after extensive computer modeling and over a dozen midnight milkings, engineers have designed, built, and now tested the new Lunar Grazing Module (LGM), a multi-purpose celestial bovine containment system. By now, many of you will not be surprised to be wished a Happy April Fool's Day from APOD. To the best of our knowledge, there are no current plans to launch cows into space. For one reason, cows tend to be large animals that don't launch easily or cheaply. As friendly as cows may be, head-to-head comparisons show that robotic rovers are usually more effective as scientific explorers. The featured image is of a thought-provoking work of art named "Mooooonwalk" which really is on display at a popular science museum.
  36. Anonymous Member

    Let’s All Remember the Time Buzz Aldrin Punched a Conspiracy Theorist in the Face

    Posted by Kyle Hill on July 20, 2015

    Forty-six years ago today, Apollo 11 delivered the first humans to walk on a celestial body besides the Earth. On July 20th, 1969, Neil Armstrong and Buzz Aldrin each spent over two hours on the surface of the Moon gathering samples. Collecting 47.5 pounds (21.5 kg) of rocks that day made both men instant, worldwide heroes.

    But despite the fact that we can literally shine lasers on the pieces of spacecraft we left on the Moon and see the reflections, there are those who doubt humans ever made footprints up there in the regolith.

    In honor of the historic first steps on the Moon, let’s all remember what happened when film maker and conspiracy theorist Bart Sibrel confronted Buzz Aldrin, demanding he swear on a Bible that he walked on the Moon.

    My guess is that calling a man who literally sat atop a controlled explosion to explore the unfathomable abyss “a coward, and a liar, and a thief” had something to do with this:


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  37. DeathHamster Member

    They're not just "pieces of spacecraft", but corner reflectors designed to bounce lasers back to their source.

    Not to mention that later craft have taken high-res images of the landing sites.

    Moon deniers are as crazy as the people who think all their friends and family have been replaced with duplicates.
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  38. meep meep Member
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  39. meep meep Member

  40. Disambiguation Global Moderator

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