The promised clearing of the past few days cloud and snow came to be mid morning today (Sunday) and with the new activity rotating onto the disk I cleaned the snow off the dome and setup to image. It was a bit windy but the dome sheltered the scope form the worst of it and it was running around -10C while I was out. The temps dropped and the wind picked up as the afternoon progressed, so the timing was good.
The first image is the disk/limb composite through the LS80T/LS75FHa/B1800Ha solar scope and the ASI174MM camera:
Full-Ha_02072021.jpg (555.21 KiB) Viewed 250 times
The new activity and proms had me use the modded iStar 150mm, f8 double stacked scope to image these features in higher resolution. The ASI290MM camera was used at prime focus...about all the seeing would permit. The first image is the SE limb with the new region of activity and a nicely detailed prom nearby:
SE_Limb.jpg (308.01 KiB) Viewed 249 times
The disk had numerous small filaments as well:
SW_Limb.jpg (239.44 KiB) Viewed 249 times
Mid_North.jpg (305.33 KiB) Viewed 249 times
The final images are of the SE prom:
SE_Proms_v2.jpg (97.5 KiB) Viewed 249 times
SE_Proms.jpg (55.79 KiB) Viewed 249 times
It will be interesting to see if this emerging region develops into something more.
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Very nice Brian! You got the plage on the SE limb which I never could see and the detail in those prominences is really nice.
And your tolerance to the cold is amazing. Does it ever cause issues with your blocking filters? Mine seems to be little affected by the cold but you get colder and stay colder longer than I do. I read somewhere recently that Lunt blocking filters are affected by cold worse than those of Coronado. That would explain why Lunt makes a heater for theirs and Meade Coronado does not.
Lunt 8x32 SUNoculars
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
Great images, Brian. Those prom shots are sublime.
Stu.
H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
Amazing hi res imaging Brian, thanks' for sharing.
Martin
H alpha : ,Skywatcher 120mm F8 open frame refractor, a tilted 2" 7nm H-alpha filter as a sub energy rejection filter, Baader TZ4 telecentric focal extender, Player One energy rejection filter, Combo Quark Chromosphere, Naked PST etalon for double stacking, ASI74mm camera
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
http://brierleyhillsolar.blogspot.co.uk/ Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
