Yesterday I went out to shoot a sunset I've planed since last summer. This time of the year, the Sun passes right behind a big radar tower if you stand at the Swedish National Biathlon Arena in Östersund. The radar tower is located about 10 km away from the arena in a small village called Ås. I shoot the movie using my solar telescope to capture the structures on the Sun. The timing was perfect and the Sun looked really nice since it was full of sunspots and big filaments.
Music: Chris Zabriskie - Cylinder Three
Showing posts with label sunspots. Show all posts
Showing posts with label sunspots. Show all posts
Monday, June 9, 2014
Friday, May 17, 2013
AR1748
En närbild av solfläckgruppen AR1748 (Gruppen till vänster i bild) som de senaste dagarna producerat 4 stycken X-klassade utbrott. I skrivande stund ser jag hur norrskensovalen växer och om det inte vore för de ljusa sommarkvällarna så skulle nog norrskenet synas ute nu.
Uppe till vänster syns ett skalenligt jordklot för att påminna er om hur små vi är jämfört med vår närmaste stjärna, solen. Det är lätt att bli ödmjuk när man tänker att här sitter vi på en rund sten i rymden och är helt beroende av denna så speciella stjärna.
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Here's a closeup shot of the active sunspot AR1748 (it's the sunspot group to the left) I took today. It doesn't look like much but it been producing strong solar flares lately and as I'm writing this I can see how the earth is starting to be hit by the solar wind and the auroral oval is growing.
If we didn't have these bright summer nights we would probably see some auroras right now. As you can see I also added color to this image and as I mentioned in another post, this is my personal choice of color on the sun.
Up to the left you can see a scaled sized of the earth, just so you won't forget how small we are compared to our nearest star, the Sun. It's easy feel small and humble that we on this small rocky planet in cold black space, is totally dependent on this special star.
Monday, March 4, 2013
Årets första solbild / First solar photo of the year
Min första solbild för i år tagen under besvärliga förhållanden och med solen endast 20 grader över horisonten. För solfoto är det bättre om solen står högt på himlen och inte så lågt som den gör nu under vintern. Det var svårt att få till denna bild då molnen konstant passerade förbi och jag fick passa på att fånga sekvenser i de luckor som uppstod.
Den nedre bilden visar en ny grupp solfläckar som just kommit fram. Tyvärr verkar ingen av dessa nykomlingar vara särskilt aktiva, så dom lär nog inte producera några norrsken. De ljusa stråken kring dessa fläckar kallas för filament och det är enorma gas- och plasmamoln som kastas ut från solens yta. Några av dessa syns också vid solens kant, men då kallas dom för protuberanser. I bilden ser ni också hur liten jorden är i jämförelse med solen, dock är inte avståndet korrekt, jorden ligger mycket längre bort från solen.
Observera också att detta är min version av solens färg. I själva verket är solen helt vit.
Nu ser fram emot den motorfokus jag beställt till solteleskopet, den bör komma inom ett par veckor, det lär kunna ge lite bättra skärpa i bilderna. Sedan kommer jag även att uppgradera min kamera till en känsligare variant och som dessutom har högre upplösning. Med andra ord kan det bli en trevlig sommar med en aktiv sol att följa.
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My first solar photo this year taken in difficult conditions and with the sun only 20 degrees above the horizon. For solar photography it is better if the sun is high in the sky and not as low as it is now in the winter. I had some hard time getting this image since the clouds constantly passed by and I had to capture my sequences in the gaps that occurred.
The last picture shows a new group of sunspots that has just arrived. Unfortunately, none of these newcomers seems to be very active, so they'll probably won't produce any aurora. The long bright shapes around the sunspots are called filaments, it's huge gas and plasma clouds ejected from the solar surface. Some of these can also be seen on the sun's edge, then they are called prominences. In the picture you can also see how small the Earth is compared to the sun, however, is not the correct distance, the earth is much further away from the sun.
Also note that this is my version of the sun's color. In fact, the sun is completely white.
Now I'm looking forward to the motor focus I ordered for my solar telescope, it should arrive within a few weeks. It will give me a little better sharpness in the images. Later on this year I will also upgrade my camera to a more sensitive one. In other words, it may be a nice summer with an active solar to follow.
Monday, January 14, 2013
Stora solfläckar / Big sunspots
En bild från morgonens soluppgång då jag bet ihop och trotsade smärtor i bröstet, den 20-gradig och gav mig ut på baksidan av huset. Det var en svag dimma som gjorde det möjligt att fotografera solfläckarna utan filter. Man ser tydligt 4 stora fläckar där den största syntes med blotta ögat. Senare mätte jag upp den största solfläckens diameter till ca 34 000 km, att jämföras med jordens diameter på ca 12 000 km. I förgrunden syns stuprören på grannens hus. Solens aktivitet tilltar nu och förhoppningsvis får vi se lite norrsken de närmaste dagarna.
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Here's a photo I took this morning when I defied my chest pains and went out in the backyard while the Sun was rising. The weather was very cold, -20 degrees Celsius and there was a light mist that made it possible to shoot right at the Sun without any filters. One can clearly see four big sunspots, and the biggest one was visible to the naked eye. Later I measured the largest sunspots diameter to about 34 000 km, to be compared to the Earth's diameter of about 12,000 km. In the foreground you can see the downpipes on my neighbors house. The Suns activity is picking up and hopefully we'll see some auroras in the coming days.
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Here's a photo I took this morning when I defied my chest pains and went out in the backyard while the Sun was rising. The weather was very cold, -20 degrees Celsius and there was a light mist that made it possible to shoot right at the Sun without any filters. One can clearly see four big sunspots, and the biggest one was visible to the naked eye. Later I measured the largest sunspots diameter to about 34 000 km, to be compared to the Earth's diameter of about 12,000 km. In the foreground you can see the downpipes on my neighbors house. The Suns activity is picking up and hopefully we'll see some auroras in the coming days.
Friday, June 15, 2012
Sommaren är här
Nu är äntligen sommaren här på fullt allvar och värmen tilltar allt mer. Idag ville jag passa på att fånga den vackra sommaren och lite av livet på vår planet som möjliggörs av vår egen stjärna solen. Vad humlan förmodligen inte vet, är att solen idag var full av fläckar.
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Now the summer is finally here. Today I wanted to take this opportunity to capture the beautiful summer and a bit of the life on our planet, made possible by our own star the Sun. What the bumblebee probably didn't know today, was that the sun was full of big sunspots.
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Now the summer is finally here. Today I wanted to take this opportunity to capture the beautiful summer and a bit of the life on our planet, made possible by our own star the Sun. What the bumblebee probably didn't know today, was that the sun was full of big sunspots.
Tuesday, March 6, 2012
En bild av dagens sol
En bild av dagens sol, fotograferad kl 15:35, som visar solfläckarna 1428, 1429 och 1430. Solfläck nummer 1429 (Den stora fläcken uppe till vänster) har nyligen haft ett par kraftiga utbrott som förhoppningsvis kommer att generera norrsken de närmaste dagarna. Solskivan innehåller också ett stort filament ute till höger i bild och flera kraftiga protuberanser utmed solskivans kant. Med andra ord en händlserik dag på solen.
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Sunspots 1428, 1429 and 1430 photographed on 2012-03-06 at 14:35 UT from Frösön, Sweden. The big sunspots sure was a beauty to watch through my solar telescope. Several big prominences was also clearly visible. Sunspot 1429 (Top left) has hurled two CMEs into space since it emerged over the weekend. Hopefully this will result in auroras the next few days.
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Sunspots 1428, 1429 and 1430 photographed on 2012-03-06 at 14:35 UT from Frösön, Sweden. The big sunspots sure was a beauty to watch through my solar telescope. Several big prominences was also clearly visible. Sunspot 1429 (Top left) has hurled two CMEs into space since it emerged over the weekend. Hopefully this will result in auroras the next few days.
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