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Truly a breathtaking spectacle on the hyperactive sunspot AR3981 on Feb 4, 2025, with several M-class flares (up to M 4.7). This sunspot is so huge that it barely fits into the large sensor of the PlayerOne Saturn-M SQR camera! The whole area looks like a storm, covered in lightning! Don't miss the great video covering almost 9 hours of acquisitions I just uploaded after 24 hours of work at the PC! https://youtu.be/BLzL8gmd86g Best, Sylvain
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SolarGun V1.3 is waiting for you on my site! Interesting new features like adding an image of the Earth or Jupiter to your solar images in 1 click and many other things! http://sweiller.free.fr/ Best Sylvain
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GOES-SunGun, The Flare software !
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Hello all, for me, today is a very important day! I just uploaded GOES-SunGun after years of work! The software to improve your solar flare captures! Enjoy! http://sweiller.free.fr/
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Nice and bit strange M3 flare on AR3961, Video.
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Hi all, It's here https://youtu.be/gTFTUUxXSyY Almost like a lightning streaks ... Best Sylvain
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Flare M1 on AR3947 20250105
In the morning I was lucky https://youtu.be/TTB3RxRyWwk later too much cloudiness ... Best Sylvain
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SolarGun V1.2 UPDATE!
SolarGun V1.2 UPDATE! With now Super-Fast Batch Colorization! As before, light-speed solar images processing! http://sweiller.free.fr/ Enjoy!
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X1 flare on AR3947
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Hi all, This was the first X flare on this very active sunspot ! Best https://youtu.be/oP9VaCEK0Ds?si=nhJPL7v0LcNS2UwR Sylvain
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Hi all, Here is the link ! Second M4 flare Dec 24, 2024 on AR3932 sunspots Best, Sylvain
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SolarGun My best ever software! Light-speed solar images processing! http://sweiller.free.fr/ Rich options but so easy, Enjoy!
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SWF Solar White Flares !!
Hi all, New ! SWF, SolarWhiteFlares, is at V1.5 ! A new function cleans the residual whitish zones due to processing and deconvolutions in the core of the flares ! See animation on the SWF page ! http://sweiller.free.fr/ Best
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Hi Dandy, Thx Everythings Ok ! I already kept the group updated yesterday ! Best Sylvain
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Hello, I'm looking for ideas ... As you can see in the photo, the base of the finder broke. I had previously managed to glue it back together and align it correctly using a good dose of hot glue. I had done the alignment during the rather long cooling time. Everything was fine until a very hot day when the ETX was in the sun ... The hot glue softened completely and the finder came off again. So I can't use this glue with such a low melting point. I spent a lot of time to successfully remove the glue! I needed a cutter by bending the blade, my fingers, a cloth, a wire brush ... Do you have any ideas for making a more solid repair taking into account that the rough alignment is not easy but must be quite correct all the same from the start to be able to use the two fine alignment screws ... Thanks, Sylvain
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Hi everybody ! Thanks to all ! During that time I found this nice video comparing the brands Which Epoxy Putty Brand is Best? JB Weld, Gorilla, Oatey, POR 15, QuickSteel, PC-7 (youtube.com) BTW a question on the red dot finder : is it possible to adjust the brightness of the dot with the Autostar handle ? My ETX tube has the red California on it. There is no knob on the RDF. I did not find this info. Thanks ! Best Sylvain
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After a long development time here is GEOSFLUX 0.5
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Hello, The FlareCapture program had to be abandoned because the server used to easily retrieve solar flux data disappeared! Therefore, a new foundation had to be established, still using Delphi 11. Drawing on my experience with FlareCapture, extensive modifications have been made. I am pleased to share the free and lightweight program GOESFLUX (version 0.55) which is now available for download on my website: The astronomy webcam paradise including astromovies, 3D & near infrared imaging (free.fr) This program will allow you (while using minimal resources on your PC) to: Instantly see the value of solar activity transmitted over the Internet View a dynamic list and record all these values with their timestamps (Local Time, Universal Time, Corrected Time) in text files with no duration limit, which are easily editable Define an activity threshold that triggers an alarm, which can be heard throughout a house, helping you not miss a period of high activity (Flare) without constant monitoring! Watch the color graph of the activity build up during the session. *** Control of the FireCapture and SharpCap programs was abandoned because the slight time lag between the event and the reception of Internet data meant that some very rapid flares were not recorded. It is now recommended to consider unattended observation sessions with this in mind: Continuous recording of the Sun on an external SSD, with numerous one-minute sequences A 2 TB SSD can allow continuous recording for an entire day if a not-too-high FPS (20-50) is chosen and the field is centered around the sunspot. The price of 1 TB and 2 TB SSDs has significantly decreased and will continue to drop! FireCapture can autoguide on a sunspot for hours or even a day if the sky is clear. Warning! Use a programmable power switch on the telescope’s power supply (cut off around 1:30 PM) if a meridian flip needs to be done in the early afternoon to avoid blocking. In this case, reverse the autoguiding movement. Quickly determine (thanks to the lists) which sequences to keep and which to discard without reviewing them individually. Future developments aim to automate this sorting process (file deletion) in real-time to allow the use of smaller SSDs or to record at higher FPS. Who knows, if cloud passage is well managed by autoguiding, this might be included in the sorting process someday :) I hope you will enjoy using this program (it runs from morning to night at my place!) Clear skies! Best regards, Sylvain
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Genesis of M 4.5 flare of the 7 June
Hi After two days of work this is the final result from C-class to M 4.5 class All details here : https://www.youtube.com/watch?v=U6_I8kvqtmw https://spaceweathergallery2.com/indiv_upload.php?upload_id=196737 Best Sylvain
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Hi, Today I catched one of my most spectacular flares (M1 Class) See also for details : https://spaceweathergallery2.com/indiv_upload.php?upload_id=196500 Best
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AR3315, an extraordinary sunspot !
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Hi all, My picture of the day ... AR3315, Extreme Complexity ! (spaceweathergallery2.com) Best Sylvain
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The new very active sunspot AR3315
To be watched ! For me it will not be before Sunday ... https://spaceweathergallery2.com/indiv_upload.php?upload_id=196339 ++ Sylvain
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Solar activity on may 25th, C7 flare in the morning
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Hi all, Waiting for more :) Here C7 flare on AR3311 ... Best Sylvain https://spaceweathergallery2.com/indiv_upload.php?upload_id=196326
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The Sun at mid day
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Hi all, You may have a look here https://spaceweathergallery2.com/indiv_upload.php?upload_id=196168 Best Sylvain
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Image Name
Sat 8:39am
Sat 8:39am