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Knight of Clear Skies

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Posts posted by Knight of Clear Skies

  1. Saw a capybara and the aurora yesterday, that's a pretty good day in my book.

    Was this the brightest display at this latitude since 2023? Was wonderful to look at, at times I didn't know which way to turn. Here's by 1h30min timelapse with a 14mm lens, my camera battery finally gave up at about 2:00 AM.

    Sent it to the BBC and they showed it at the end of the regional news broadcast (Spotlight) tonight.

    As a bonus, caught a couple meteors right at the end.

    image.thumb.jpeg.861aab85d694ef72982328c7dc2fa853.jpeg

    AuroraMeteor2.thumb.JPG.8177ac75201f0c5e3ea4a8de646aba85.JPG

    PC is churning away now running some Photoshop batch processing on the 712 frames, to bring out a bit more structure.

    • Like 27
  2. Incredible display from Cornwall, could see some shades of green, purples and occasionally blue in the light pillars. Didn't know where to look at times, even had some bright transient pillars appear due South. Took about 1,700 shots for various timelapses using my 14mm and 35mm lenses.

    • Like 2
  3. On 04/03/2024 at 10:57, JeremyS said:

    Looks like a SAR (Stable Auroral Red) Arc

    Thanks. I imaged it myself last week and was wondering what it was. According to this link the name is misleading and it's not really an aurora:

    https://spaceweatherarchive.com/2021/11/22/3308/

    "Auroras appear when charged particles rain down from space, hitting the atmosphere and causing it to glow like the picture tube of an old color TV.  SARs form differently. They are a sign of heat energy leaking into the upper atmosphere from Earth’s ring current system."

    • Like 1
  4. Well, that's just lovely, a churning roiling dust field. I don't remember seeing a shot quite like this, showing such a coherence of the branching dust structures. Could be a consequence of such a wide field of view and scale of the region it shows. Is that all of the Perseus molecular cloud in view? Would be interesting to compare the distribution of the radio HI signal.

    Here's a slightly wider field of view in IR from WISE (W1/W2 channels):

    https://viewer.legacysurvey.org/?ra=62.1268&dec=31.2590&layer=unwise-neo6&zoom=6

    The IC138/NGC1333 region is particularly interesting in IR:

    https://viewer.legacysurvey.org/?ra=54.4457&dec=31.8272&layer=unwise-neo6&zoom=8

    • Like 2
  5. Could you post an image please?

    Certainly doesn't deserve ridicule, it's interesting if something is showing up in your image. But it could well be some kind of optical artifact. I once had something that looked like a comet in a chain of subs but turned out to be a reflection from a bright star a little out of frame. Another time I had an odd artifact from an IR security light on a camera. Measured skepticism is probably the right approach, but dismissal wouldn't be.

    A streak doesn't sound right for, say, a supernova as it is a point source, unless a very bright transient or cosmic ray caused a column to saturate.

    • Like 1
  6. Missed the brightest part of the display which was after midnight but still got this:

    image.thumb.jpeg.006b97c84c78982b1153102dd76c2421.jpeg

    This was looking up a slope, so not the best vantage point. Would have been well worth my while to get to higher ground but the aurora seemed to be subsiding at that point and I wasn't confident in the weather forecast.

    The forecasts show a chance of more displays over the next few days.

    • Like 6
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