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| Sun in H-Alpha https://forum.vdsastro.de/viewtopic.php?t=5622 |
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| Autor: | Alex Geiss [ 23. März 2019, 17:19:19 PM ] |
| Betreff des Beitrags: | Sun in H-Alpha |
Hi there! Today I got a message of my new astronomy friend Giorgio at Pergola, Italy, near my future home Colle-del-Lupo. Few days before I informed him of a dramatically active region in H-Alpha (region 2736), because I know, that he´s an Artist in documentating the sun while observing with PST. The most active region since half a year or even more. Unfortunately they were clouded out this time and I wasn´t able to draw at that time. But today he could draw a sketch of the sun with that interesting region and I desided to do so, too. Unfortunately I could do so more than two hours later. So here´s what I could catch in that manner, I do: First one as I observe and sketch through azimutal mounted PST (finding west by letting sun running out of sight), second turned in that way that equator is rotating from left to right, sun´s northern hemisphere pointing upwards (orientation just the same as GONG H-Alpha Network http://halpha.nso.edu/index.html). Perhaps I may show his sketch also here later. Clear skies! Alex Dateianhang: HAlphaSun 20190323.JPG [ 1.45 MiB | 2652 mal betrachtet ] Dateianhang: HAlphaSun 20190323 upright.JPG [ 1.5 MiB | 2652 mal betrachtet ] |
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| Autor: | Alex Geiss [ 26. März 2019, 22:27:56 PM ] |
| Betreff des Beitrags: | Re: Sun in H-Alpha |
Hi again! Here I got Giorgio´s sketch of the H-Alpha-sun, which he drawed two hours before on 2019-MAR-23. Easy to find that his one is much more detailed than mine. Not fine for me but that´s how it is. Notice that some details are even scaled beside the sun! Could it be he catched an ellerman bomb? CS Alex Get your PSTs out! Sun´s new cycle has started... =D Dateianhang: HAlphaSun 20190323 GiorgioBonacorsi.jpg [ 5.61 MiB | 2568 mal betrachtet ] |
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| Autor: | Alex Geiss [ 31. März 2019, 13:08:39 PM ] |
| Betreff des Beitrags: | Re: Sun in H-Alpha |
Salve tutti! Ora ho finito un altro disegno del nostro sole. Oggi è molto calmo. Ciaociao. Hi all! Just finished another sketch of our sun. Today it´s very calm. CS! Alex Dateianhang: HAlphaSun 20190331.JPG [ 1.42 MiB | 2486 mal betrachtet ] |
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