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Sun's surface seen in new detail

336 点作者 Patient0超过 5 年前

17 条评论

minimalc超过 5 年前
I work as a graduate SW engineer at Andor, which produced the SCMOS camera they used to capture the images (<a href="https:&#x2F;&#x2F;andor.oxinst.com&#x2F;balor-scmos" rel="nofollow">https:&#x2F;&#x2F;andor.oxinst.com&#x2F;balor-scmos</a>).<p>Quite a nice surprise to see during my morning commute! Everyone here is extremely pleased to see how the images turned out. Very impressive work from DKIST
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amatecha超过 5 年前
You can view all the photos and videos directly on the National Solar Observatory&#x27;s website: <a href="https:&#x2F;&#x2F;www.nso.edu&#x2F;inouye-solar-telescope-first-light&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.nso.edu&#x2F;inouye-solar-telescope-first-light&#x2F;</a> (and press release at <a href="https:&#x2F;&#x2F;www.nso.edu&#x2F;press-release&#x2F;inouye-solar-telescope-first-light&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.nso.edu&#x2F;press-release&#x2F;inouye-solar-telescope-fir...</a> )<p>Would way prefer people link the original sources in cases like this, where the news articles add almost nothing useful and instead bombard me with advertisements and user-tracking, etc.
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ArtWomb超过 5 年前
The granule flow in that animation would make a great RNG ;)<p>Congrats to all involved, and kudos for ushering in a new golden age of solar observations<p>At first glance of the static image, it appeared to me the granular structure of solar surface convection resembled a thousand other phenomena in Nature: poly-crystalline grain boundaries in metal alloys, lipid cells in fatty tissue, colloidal suspensions of cloud smoke<p>But watching the animation made me realize how unique and dissimilar this is to any other chaotic turbulent flow<p>Due to the sun&#x27;s gargantuan scale, even throwing the world&#x27;s fastest supercomputers at the problem, we cannot adequately simulate all the convection, plasma, rotation and magnetic interactions of solar surface and interior dynamics<p>These images make me feel very humbled, reminding us of our place in the cosmos!<p>Weak influence of near-surface layer on solar deep convection zone revealed by comprehensive simulation from base to surface<p><a href="https:&#x2F;&#x2F;advances.sciencemag.org&#x2F;content&#x2F;5&#x2F;1&#x2F;eaau2307" rel="nofollow">https:&#x2F;&#x2F;advances.sciencemag.org&#x2F;content&#x2F;5&#x2F;1&#x2F;eaau2307</a>
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mncharity超过 5 年前
For anyone curious, some years ago I talked with the NSO outreach folks, and they were aware then that the Sun is white, and that yellow&#x2F;orange is a misconception widespread and problematic in both astronomy education and the general US population, and that their colorizations were not helping with that. Their justification was roughly that you need to hook people with what they expect, and only then can you make progress with educating them. I thought and think that that&#x27;s very much the wrong call, as well as over the line ethically, but... oh well.<p>Though the misconception really is pervasively widespread, even among first-tier astronomy graduate students, so perhaps there might now be a degree of confusion present as well. And a (very) few instances of colorization are representationally valid, if unfortunate in their collateral damage, as when representing that some instrument&#x27;s sampling band is in yellow.
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lifeisstillgood超过 5 年前
May I recommend this weeks BBC &quot;In Our Time&quot; podcast on Solar Wind (I cannot link to it because my podcast app just throws up some html card thingy destroying 30 years of sanity &#x2F; rant &#x2F; moan)<p>As usual a deeply knowledgeable and enthusiastic set of guests and they were talking about this telescope and several other probes launched and due to be launched<p>well worth it
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newnewpdro超过 5 年前
&gt; Each night, a swimming pool’s worth of ice is emptied into eight tanks. During the day, coolant is routed through the ice tanks and distributed through the observatory by 7.5 miles (12km) of piping. More than 100 air jets are also positioned behind the main mirror.<p>Are they actually making a swimming pool&#x27;s worth of ice cubes that are &quot;emptied&quot; into these tanks? I looked at the wikipedia page [0] for more information but there&#x27;s no mention of the cooling system.<p>It sounds like a major part of the interesting engineering challenge, strange to not find photos or even a description of the cooling system&#x27;s design.<p>[0] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Daniel_K._Inouye_Solar_Telescope" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Daniel_K._Inouye_Solar_Telesco...</a>
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OnACoffeeBreak超过 5 年前
Something I just realized while reading this article is that the Earth is only about 100 solar diameters from the Sun. This was completely out of proportion with my gut feel.<p>Edit: change &quot;radii&quot; to &quot;diameters&quot;
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keyle超过 5 年前
It&#x27;s weird I wrote some sun materials in the past, for a game, and I ended up roughly with that. What I based myself on was a sci-fi movie (can&#x27;t remember), and they had it right. Can&#x27;t really figure out why it looks that way though, anyone care to explain why it rises and drops like that? Is there anything like currents, or it&#x27;s a straight up and down? Does the sun rotate at all or it&#x27;s &#x27;static&#x27; from our perspective? (I imagine it&#x27;s rotating with the stars within our galaxy)
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olivermarks超过 5 年前
<a href="https:&#x2F;&#x2F;www.nso.edu&#x2F;press-release&#x2F;inouye-solar-telescope-first-light&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.nso.edu&#x2F;press-release&#x2F;inouye-solar-telescope-fir...</a>
rwmj超过 5 年前
Going to be a good decade for Sun observations because the Parker Solar Probe will make closer and closer passes around the Sun for the next 5 years. <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Parker_Solar_Probe" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Parker_Solar_Probe</a>
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HenryKissinger超过 5 年前
This is great. But I really hope to see close pictures of the Sun during my lifetime. And by close, I mean ultra high resolution pictures and footage taken from one million kilometers or closer. I want to see the grainy detail of these cell like structures.
foota超过 5 年前
Man, it says each of those cells is 30k km, imagine how quickly the plasma most be moving in there for the effects you see to happen.
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mirimir超过 5 年前
&gt; The observations could help resolve longstanding mysteries of the sun, including the counterintuitive feature that the corona – the sun’s atmosphere – is heated to millions of degrees when its surface is only 6,000C.<p>Is that really a &quot;mystery&quot;?<p>I mean, you can easily create plasma in a microwave oven, and the magnetron doesn&#x27;t get very hot.
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dchasson超过 5 年前
This news is stunningly correlated to my lecture this morning from Dr Bailey at Virginia Tech. The man was in Alaska finishing the launch of his sounding rocket for NASA.<p>The ideal gas law dictates these amazing structures of the solar atmosphere. But.... incredible cosmic magnetic powers influence these structures in the solar atmosphere... That we still can&#x27;t explain.<p>Later I hope to discover alien life in the distributions of charged particles and their induced magnet fields... I may need to aquire another degree in the mean time.<p>#fields #studyhard
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DoctorOetker超过 5 年前
Does anyone know where I can find DC-blocked audiorate measurements of solar intensty &#x2F; noise? Or alternatively forward me to an observatory that measures this?
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KindOne超过 5 年前
Discussion 9 hours ago, The Guardian: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=22185565" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=22185565</a>
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jcims超过 5 年前
Can&#x27;t wait to see sunspots this close. What if they all have an angry face in them?