Sun images in Ca II K and Ha including large prom
Posted: Fri Feb 07, 2020 9:59 pm
Hi Folks,
Finally some sun and time to image it! I think the last time I got the chance to image was back in November (Mercury transit day). We have had the occasional sunny day since then, but usually when I'm at work. Today things finally came together- Sun and a day off. The only downside was the seeing conditions were awful making capturing fine details somewhat tricky.
First up a Ca II K full disk in monochrome and colour displaying a little active region in the south-west.
20200207_CaK_FD_Mono_mosaic by Stuart Green, on Flickr
20200207_CaK_FD_Colour_mosaic by Stuart Green, on Flickr
and over to the red end of the spectrum in hydrogen alpha showing a small filament, the active region and an impressive prominence in close up.
Ha full disks....
20200207_Ha_FD_Mono_mosaic by Stuart Green, on Flickr
20200207_Ha_FD_Colour_mosaic by Stuart Green, on Flickr
.....and a closer view of the beautiful prom in the north-east on a 150 mm/DS Lunt 35 modified refractor.
20200207_LOOPING PROM2_Ha by Stuart Green, on Flickr
Thanks for looking.
Stu.
Finally some sun and time to image it! I think the last time I got the chance to image was back in November (Mercury transit day). We have had the occasional sunny day since then, but usually when I'm at work. Today things finally came together- Sun and a day off. The only downside was the seeing conditions were awful making capturing fine details somewhat tricky.
First up a Ca II K full disk in monochrome and colour displaying a little active region in the south-west.
20200207_CaK_FD_Mono_mosaic by Stuart Green, on Flickr
20200207_CaK_FD_Colour_mosaic by Stuart Green, on Flickr
and over to the red end of the spectrum in hydrogen alpha showing a small filament, the active region and an impressive prominence in close up.
Ha full disks....
20200207_Ha_FD_Mono_mosaic by Stuart Green, on Flickr
20200207_Ha_FD_Colour_mosaic by Stuart Green, on Flickr
.....and a closer view of the beautiful prom in the north-east on a 150 mm/DS Lunt 35 modified refractor.
20200207_LOOPING PROM2_Ha by Stuart Green, on Flickr
Thanks for looking.
Stu.