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Stars, Including the Earth's Sun

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RVInit
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Stars, Including the Earth's Sun

#1

Post by RVInit »

Solar Week is upon us, we almost missed it! How did that happen? :mrgreen:

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Re: Suns, Including the Earth's Sun

#2

Post by RVInit »

Some cool stuff to explore during Solar Week:

https://multiverse.ssl.berkeley.edu/Solar-Week
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Re: Suns, Including the Earth's Sun

#3

Post by Estiveo »

Image Image Image Image
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Re: Suns, Including the Earth's Sun

#4

Post by AndyinPA »

Great catch! :thumbsup:
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Re: Suns, Including the Earth's Sun

#5

Post by Uninformed »

“Astronomers work out when the first stars shone”:
https://www.bbc.co.uk/news/science-environment-57515422

“They say that this period, known as the "cosmic dawn," occurred between 250 to 350 million years after the Big Bang.
The results indicate that the first galaxies will be bright enough to be seen by Nasa's James Webb Space Telescope, which is set to be launched later this year.
The study is published in the Monthly Notices of the Royal Astronomical Society.”
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Re: Suns, Including the Earth's Sun

#6

Post by RVInit »

Heliophysics — the study of the Sun and how it influences space — is full of exotic phenomena and events that shape space from the center of our solar system to the outer edges, billions of miles away. Some aspects of the Sun’s activity and influence are well-understood by scientists, while others remain under study. Here are some definitions of common things that occur on the Sun or are driven by the Sun’s influence.
https://www.nasa.gov/mission_pages/sune ... =124464546


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Re: Suns, Including the Earth's Sun

#7

Post by Luke »

On Telegram, HRH Majesty Queen Romana Didulo implies she's responsible for this.

ROMANA Didulo @romanadidulo ~ Head of State & Commander-in-Chief, Head of Government, Queen of Canada @romanadidulo, [16.07.21 02:47]


Impact.jpg
Impact.jpg (71.59 KiB) Viewed 4056 times


https://bit.ly/2TcLCdm 😉😎👆

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Re: Suns, Including the Earth's Sun

#8

Post by RTH10260 »

on collision course
:?: :?: :?:
as if Earth had a choice to switch its course :doh:
this lady needs to learn that the Earth is swimming in continous emmissions by the Sun.
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Re: Suns, Including the Earth's Sun

#9

Post by RVInit »

Interesting timeline on discoveries about our Sun.

https://www.nasa.gov/feature/goddard/20 ... e-timeline
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Re: Suns, Including the Earth's Sun

#10

Post by RVInit »

So cool.

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Re: Suns, Including the Earth's Sun

#11

Post by AndyinPA »

I agree. Very cool!
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Re: Suns, Including the Earth's Sun

#12

Post by p0rtia »

Wow! Thanks, RV! :heart:
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Re: Suns, Including the Earth's Sun

#13

Post by Tiredretiredlawyer »

What key is that wind in, N10? :confuzzled:
"Mickey Mouse and I grew up together." - Ruthie Tompson, Disney animation checker and scene planner and one of the first women to become a member of the International Photographers Union in 1952.
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Re: Suns, Including the Earth's Sun

#14

Post by RTH10260 »

Nasa’s solar probe ‘touches’ sun for first time, dives into unexplored atmosphere
The Parker probe is exploring the corona to help scientists better understand solar outbursts that can interfere with life on Earth

Associated Press
Wed 15 Dec 2021 00.22 GMT

A Nasa spacecraft has officially “touched” the sun, plunging through the unexplored solar atmosphere known as the corona.

Scientists announced the news Tuesday during a meeting of the American Geophysical Union.

The Parker solar probe actually flew through the corona in April during the spacecraft’s eighth close approach to the sun. Scientists said it took a few months to get the data back and then several more months to confirm.

Nour Raouafi, a project scientist with Johns Hopkins University, described the news as “fascinatingly exciting”.

Because the sun lacks a solid surface, the corona is where the action is; exploring this magnetically intense region up close can help scientists better understand solar outbursts that can interfere with life here on Earth.

Launched in 2018, Parker was 8m miles (13m kilometers) from the center of the sun when it first crossed the jagged, uneven boundary between the solar atmosphere and outgoing solar wind. The spacecraft dipped in and out of the corona at least three times, each a smooth transition, according to scientists.

“The first and most dramatic time we were below for about five hours ... Now you might think five hours, that doesn’t sound big”, the University of Michigan’s Justin Kasper told reporters. But he noted that Parker was moving so fast it covered a vast distance during that time, tearing along at more than 62 miles (100 kilometers) per second.



https://www.theguardian.com/science/202 ... first-time
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Re: Suns, Including the Earth's Sun

#15

Post by northland10 »

Tiredretiredlawyer wrote: Fri Oct 15, 2021 5:24 pm What key is that wind in, N10? :confuzzled:
Sorry for the delay but I missed the post. Now as for the question, in the great tradition of avant-garde music with their beep boop notes and tone clusters, keys don't matter.
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Re: Suns, Including the Earth's Sun

#16

Post by Tiredretiredlawyer »

:biggrin:
"Mickey Mouse and I grew up together." - Ruthie Tompson, Disney animation checker and scene planner and one of the first women to become a member of the International Photographers Union in 1952.
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Re: Suns, Including the Earth's Sun

#17

Post by northland10 »

I did find the tone of magnetic field here, as performed by the Bluecoats Drum and Bugle Corps.

2:49 in if it does not start there automatically.
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Re: Suns, Including the Earth's Sun

#18

Post by pipistrelle »

northland10 wrote: Wed Dec 15, 2021 9:40 am I did find the tone of magnetic field here, as performed by the Bluecoats Drum and Bugle Corps.
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Re: Suns, Including the Earth's Sun

#19

Post by Estiveo »

Image Image Image Image
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Re: Suns, Including the Earth's Sun

#20

Post by northland10 »

pipistrelle wrote: Wed Dec 15, 2021 9:17 pm
northland10 wrote: Wed Dec 15, 2021 9:40 am I did find the tone of magnetic field here, as performed by the Bluecoats Drum and Bugle Corps.
???

Were you confused that the static image on the video shows a band in green (i.e. the Madison Scouts)? If you hit play, it should start part of the way in (2:49) which is actually part of the Bluecoats performance.
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Re: Suns, Including the Earth's Sun

#21

Post by pipistrelle »

northland10 wrote: Wed Dec 15, 2021 10:31 pm
pipistrelle wrote: Wed Dec 15, 2021 9:17 pm
northland10 wrote: Wed Dec 15, 2021 9:40 am I did find the tone of magnetic field here, as performed by the Bluecoats Drum and Bugle Corps.
???

Were you confused that the static image on the video shows a band in green (i.e. the Madison Scouts)? If you hit play, it should start part of the way in (2:49) which is actually part of the Bluecoats performance.
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Nah, found it amusing you have discovered the true source of Kap’n Karl’s angst. :P
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Re: Suns, Including the Earth's Sun

#22

Post by northland10 »

:lol: Completely missed that.
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Re: Suns, Including the Earth's Sun

#23

Post by RVInit »

Estiveo wrote: Wed Dec 15, 2021 9:22 pm
This video is amazing and the article is really interesting, I highly recommend everyone to read it. I have always been fascinated by stars and we are learning so much more about our very own.
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Re: Suns, Including the Earth's Sun

#24

Post by p0rtia »

Thanks! Wonderful. Glad I've lived to see this. :heart:
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Re: Suns, Including the Earth's Sun

#25

Post by noblepa »

"Parker was 8m miles (13m kilometers) from the center of the sun "

?????

The sun is over 800,000 miles in diameter. So, 8 miles from the center is over 400,000 miles beneath the surface.

Did they mean to say 8 miles from the SURFACE of the sun? Even that is amazing. The surface temperature of the sun is 5,800 degrees kelvin (9,980 F), enough to melt any known metal. The center is 1.57M Kelvin, or 2,699,500 F.

https://en.wikipedia.org/wiki/Sun#Core
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