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https://twitter.com/i/status/1640907167766134784



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https://pbs.twimg.com/media/FsWw800X0AEXcxT?format=jpg&name=small

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https://pbs.twimg.com/media/FsYwQurWAAAKGaG?format=jpg&name=small


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https://twitter.com/i/status/1641100984242905089

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https://twitter.com/i/status/1641252558311153669


(Sorry, the YABB crap software running this board cannot handle the formatting of images and videos used by Dr K Strong on Twitter. My forum handles them no problem—time to update this board’s software to something reasonably modern.

greggerypeccary wrote on Mar 30^th, 2023 at 4:16pm:


Here we go:

Scientists are currently working out how much danger we may face after a huge “coronal hole” 20 times larger than the Earth has appeared on the sun.

Australia National University Astrophysicist Doctor Brad Tucker told Gary Adshead on 6PR Mornings there was some chance solar winds could affect electronics, satellites and maybe the Earth’s magnetic field itself.

“Essentially it’s a giant Sun burp,” Dr Tucker said.

https://www.6pr.com.au/solar-wind-warning-as-massive-hole-rends-the-sun/

If you can get to Hobart or some good viewpoint in Perth you will likely see a massive aurora in a day or two.

This will be my first winter in Tasmania, yup.

BUT I was born in Holland and I will give you an anecdote that describes winter sunrise/set there.

This one morning Dad was awake, looked out the window to the clock on the big church (not sure if it rates as a cathedral!) and saw quarter to eight. He jumped ouf of bed, got dressed, hopped on his pushbike to get to work. But he realised he was about the only one on the road—it wasn’t quarter to eight he had seen but quarter past three! He had seen a reflection of the clock! He could laugh about it later.

Latitude of Delft, Zuid Holland: 52.0115769°N

Latitude of Hobart, Australia:  42.88164°S

Latitude of Rockhampton: 23.375000°S

Latitude of the Australian Antarctic territory: south of the 60°S

So Tasmania is not Antarctica despite the braying of a couple of donkeys here.

Tasmania is nowhere near as cold as Holland or England

That explains sunrise/set.

When I was in England in Dec 1978 I had a nice lunch at a restaurant. Was on the first floor—as I finished lunch, about 2.30pm I could see dusk creeping in on this park across the road from the restaurant.


Sun seems to be rising or has just riz at 06.55am.

Re: the sun?



Coronal holes explained:



And:



And:



Bit apocalyptic:



Tons of videos on the recent coronal hole, harder to find explanations of what they are, how they form and what they do or mean for us.