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Old 08-09-2017, 09:46 AM
N1 (Mirko)
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Kp=8

She's going nuts.

http://services.swpc.noaa.gov/images...ry-k-index.gif
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Old 08-09-2017, 09:54 AM
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multiweb (Marc)
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Anything visible from Sydney?
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Old 08-09-2017, 10:50 AM
N1 (Mirko)
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Anything visible from Sydney?
Well, auroras are seen from NSW occasionally, and the Kp is high enough for it ATM, so assuming that this sort of level holds until tonight, and assuming a clear, dark southern horizon with good transparency, it may just be possible to pick them up. That's a lot of assumptions though, and I don't know how the moon affects things for this latitude-challenged location (horizon brightening won't help either). Also the GFS cloud forecast suggests some cloudiness off shore. Still you may get lucky. Regardless of the above, I would say that if there was ANY part of the city between you and it, forget it.
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Old 08-09-2017, 10:58 AM
Saturnine (Jeff)
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BOM IPS are saying Kp6 for us at the moment, if it ramps up to Kp7 or 8 tonight then it may be possible to see something from the SE of the country but the near full moonlight wont be doing us any favours.
Be interested to hear if anyone from Tassie or Vic. saw anything last night / this morning, have seen some images from NZ.
The active region causing the X class flares has been interesting to watch for the past few days.
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Old 08-09-2017, 11:49 AM
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Well, auroras are seen from NSW occasionally, and the Kp is high enough for it ATM, so assuming that this sort of level holds until tonight, and assuming a clear, dark southern horizon with good transparency, it may just be possible to pick them up. That's a lot of assumptions though, and I don't know how the moon affects things for this latitude-challenged location (horizon brightening won't help either). Also the GFS cloud forecast suggests some cloudiness off shore. Still you may get lucky. Regardless of the above, I would say that if there was ANY part of the city between you and it, forget it.
Thanks. ACCESS SEAUS on cloudfreenight doesn't look too bad for tonight so we might get a shot at it. Moon is up though. We'll see.
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Old 08-09-2017, 01:07 PM
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Bz is positive at the moment. Nothing to see.

It was at -33 nT this morning. I've never seen that before.

It's fizzled out for the time being.

H
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Old 08-09-2017, 10:52 PM
N1 (Mirko)
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The view outside 1h ago
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Old 08-09-2017, 11:01 PM
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Fist of God ?
We are on the edge ........

Brian.
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Old 09-09-2017, 07:14 AM
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The view outside 1h ago
That's awesome! The clouds really make the shot. Fantastic colors and framing.
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Old 10-09-2017, 06:52 PM
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Thanks. It was a good display despite the moonlight, or maybe because of it.

Here is a rough vid of the pulsations. It's realtime so excuse the quality. It really does move that fast.

https://www.dropbox.com/s/nhzrlhg6gl...urora.mp4?dl=0
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Old 10-09-2017, 08:46 PM
Saturnine (Jeff)
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Mirko
Thanks for putting up the video link, that was most interesting to watch how fast the waves pulsate. Must have been gorgeous to watch, if a little chilly.
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Old 10-09-2017, 10:15 PM
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Absolutely stunning! Were those pulsations noticeable to the eye?
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Andrew.
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Old 11-09-2017, 07:30 AM
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Thanks. It was a good display despite the moonlight, or maybe because of it.

Here is a rough vid of the pulsations. It's realtime so excuse the quality. It really does move that fast.

https://www.dropbox.com/s/nhzrlhg6gl...urora.mp4?dl=0
Wow! That's pretty fast. Could you see colors naked eye?
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Old 11-09-2017, 12:33 PM
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From what I've read, yes! Some people have also reported hearing them.

H

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Absolutely stunning! Were those pulsations noticeable to the eye?
Regards
Andrew.
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Old 11-09-2017, 07:17 PM
N1 (Mirko)
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Hi Guys, you absolutely can see the pulsations. They were the most surprising feature when I first saw them years ago and I was awestruck. No visible colour though.

For perspective, the faint moonlight on the clouds in front was just visible.

Last edited by N1; 11-09-2017 at 07:38 PM.
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