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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #180 - Mar 31^st, 2023 at 8:19am Greggy you might like this one:
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UnSubRocky

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Re: The sun
Reply #181 - Mar 31^st, 2023 at 12:39pm

I only comment on the solstices in different places because it fascinates me about the day lengths. I checked out Reykjavik, Iceland's sunrise and sunset. They have 21-hour summer days and 4-hour winter days of sunlight. Whereas places like Hammerfest, Norway have months of all-day sun in the summer. And no sun for 50-something days during the winter.

Having lived closer to the equator than 90% of Australia's population, we only see the effects of longest days or shortest days during the solstices. The daylengths between the two times only vary by 3.5 hours. I figure people in Tasmania would lose their minds about having longer or shorter days than what we have up here.

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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #182 - Mar 31^st, 2023 at 12:47pm Takes some adjusting. But guess what? ONE day the car thermometer registered 39°C this summer. The rest of the days were 31° or less. Every night temperatures dropped t0 12–15°C, you could sleep! No series of 40+°C days and 30°C nights like in Adelaide!
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Re: The sun
Reply #183 - Mar 31^st, 2023 at 12:57pm

Would you have had a ceiling fan for your room in Adelaide? I remember growing up trying to get through humid summer nights being near sleepless. Living away from home, I had my first use of a ceiling fan. After moving away from there and into this house (this being the 20th year I have been here), I had ceiling fans in every room. The ceiling fan in this room has been on since September last year. But it only goes slowly at its fastest -- just enough to give a nice breeze.

It took until we had that week of no power (after cyclone Marcia) where I remembered what it was like to not have a breeze to let me sleep through hot, humid and mosquito filled nights. It will be a month from now when I keep the fans off for a few months, as the winter nights mean that you have to keep the warmth in the house and not blown out the toilet room window.

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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #184 - Mar 31^st, 2023 at 1:01pm Yup, ceiling fan+light in bedroom and lounge. Also had a/c in lounge, used that sparingly, would have had it on 24hours straight only once or twice.
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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #185 - Mar 31^st, 2023 at 1:03pm Quote: Keith Strong@drkstrong CME WATCH - 2023.03.30: We have two big eruptions, starting with the one off the southeastern limb of the Sun (bottom left). Then a larger but fainter one off the SW limb. https://twitter.com/i/status/1641629395013042176
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UnSubRocky Gold Member Offline Crocodile Hunter: Origins Posts: 24536 Rockhampton Gender:	Re: The sun Reply #186 - Mar 31^st, 2023 at 1:05pm Those commercials that talk about mobile airconditioners were so enticing to buy. I listen to my old fashion airconditioner whirring away. I wonder whether I am spending 3 times as much power on that thing that I would be if I had one of those featured on those commercials.
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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #187 - Mar 31^st, 2023 at 1:27pm I had a mobile evaporative cooler at the shop. Didn’t notice much cooling.
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UnSubRocky

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Re: The sun
Reply #188 - Mar 31^st, 2023 at 1:30pm

Jovial Monk wrote on Mar 31^st, 2023 at 1:27pm:

I had a mobile evaporative cooler at the shop. Didn’t notice much cooling.

The "Arctic Air" unit that I have in this lounge did nothing much more than a slight cool breeze on my back. But, it was better than nothing.

Dad got me a portable fan to use over the remainder of the warm season. But, it would not do me much good, seeing that this house has a fan in each room.

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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #189 - Apr 1^st, 2023 at 6:07am Quote: Keith Strong@drkstrong·6h THE SUN TODAY: Helioviewer not fixed! 1) SSN down to 80 & area falls to 560 millionths 2) No significant flares since M7 yesterday. X-ray background down to B7 3) Some modest regions behind the NE & SE limbs 4) Many regions disappearing over west limb, few new small ones emerging
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Jovial Monk

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Re: The sun
Reply #190 - Apr 1^st, 2023 at 10:11am

Quote:

Keith Strong@drkstrong·11h

The Average Sunspot Number (SSN) for March 2023 was about 122, the second highest monthly average so far this cycle (after January 2023) and just a little higher than February. It is the 4th month in a row with an average SSN above 100. It is also over 50% higher than March 2022.

https://pbs.twimg.com/media/FsjJPhsWYAIak3J?format=png&name=small

Quote:

Keith Strong@drkstrong·15h

GEOMAGNETIC STORM: A weak geomagnetic storm is in progress (G1; Kp=5). Expect some aurora at high latitudes.

https://pbs.twimg.com/media/FsiNfekWAAIJO-R?format=png&name=small

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Jovial Monk

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Re: The sun
Reply #191 - Apr 1^st, 2023 at 1:15pm

HUGE bloody CME!

Quote:

Keith Strong@drkstrong

SPECTACULAR CME OFF NW LIMB: A very bright, fast-moving prominence erupts away from the Sun as seen by the SUVI He II 304 image (center) and within an hour a massive CME becomes visible in the LASCO High-res field of view. The bright material in the image is the original filament

https://twitter.com/i/status/1641975435876605957

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Jovial Monk Moderator Offline Dogs not cats! Posts: 45888 Gender:	Re: The sun Reply #192 - Apr 2^nd, 2023 at 4:23am Quote: Keith Strong@drkstrong·4h THE SUN TODAY: 1) SSN down to 60; area only 300 mil. 2) Two medium level C flares, both from behind the west limb. 3) Looks like a substantial region behind the SE limb. 4) Several regions disappeared over the west limb, a few minor spots emerging (white). Other regions decaying.
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Jovial Monk

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Re: The sun
Reply #193 - Apr 2^nd, 2023 at 4:25am

Quote:

Keith Strong@drkstrong·7h

CONFIRMED: The long-duration flare (see earlier tweet) did have a large coronal mass ejection associated with it. The left panel shows the flare at its peak (arrow) from the GOES SUVI instrument. The right panel shows the SOHO LASCO image of the CME just an hour after the flare.

https://pbs.twimg.com/media/Fsnx9auWIAACu0b?format=png&name=small

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Jovial Monk

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Re: The sun
Reply #194 - Apr 2^nd, 2023 at 6:46pm

Quote:

Keith Strong@drkstrong

CORONAL HOLE ALERT - 2023.04.01: Another coronal hole in moving into position to send high-speed solar wind at Earth. It is the long thin N-S dark area just west of Sun center. It is long enough that it cannot miss us but is so narrow that it will likely have no effect on Earth.

https://pbs.twimg.com/media/Fsq2K4iXsAQsx8A?format=jpg&name=small

Quote:

Keith Strong@drkstrong·7h

CME WATCH - 2023.04.01: Busy day! We start with a minor CME off the NW limb followed by the spectacular one from the LDE event (see earlier tweet). Next a fainter CME in the SW, and another off the S. Pole region. We have a faint halo CME almost simultaneous with one in the SE.

LOL!
Quote:

Keith Strong@drkstrong·7h

Jupiter photobombs the Sun! The bright object in the bottom left of this image of the outer solar corona from the SOHO LASCO C3 instrument is Jupiter on the far side of the Sun (i.e., about as far away from Earth as it can get). It will drift westward over the next week or so.

https://pbs.twimg.com/media/Fsq78fcXoAAPMmA?format=png&name=small

This is really fascinating! Sunspots, sunspot regions. filaments, flares and CMEs from sunspot regions, coronal holes, suicidal comets flying too close to the sun like a modern day Icarus! Some comets/meteorites may escape their grazing contact with the sun!

I did not start this series of posts right from the start of Solar Cycle 25. To make up for that I will keep this going to the end of SC25 and a year or two into SC26. There will be summaries etc as well.

Also—will read up on the sun and post some of the science here. This will be fascinating!

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« Last Edit: Apr 2^nd, 2023 at 6:54pm by Jovial Monk »

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