I guess most solar observers are concentrating on the latest AR, AR2859 which is looking promising . Here is a feature I noticed on the south east today.
I noticed what appeared to be a high area on the suns disk edge, so to be sure it wasn't a prominence I took a series of 30 minute animations.
I haven't seen seen anything this size before, the animation seams to indicate that the bulge appears to be a surface feature. I'm not sure what the correct name for this would be, if anybody knows I'd be most interested. I took some Cak images earlier and the same bump can be seen on one of my images.
Martin.
resized by Martin Symonds, on Flickr
Bulging Disk 22-08-2021
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Bulging Disk 22-08-2021
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Re: Bulging Disk 22-08-2021
Superb work Martin, that bulge will come round as a smooth worm like filament as it progresses round the limb. I am sure this is associated with an AR region especially if bright in CaK
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Re: Bulging Disk 22-08-2021
I would be curious to see this visually. Martin, could you post the CaK image of it?
Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
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Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
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Losmandy AZ8 Alt/Az Mount
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Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "