Wednesday Before Work - 15th May
Posted: Wed May 15, 2019 8:09 pm
Another day with clear skies dawned this Wednesday morning for me, and despite some haze in the eastern sky this seemed to have no ill effects and the seeing was actually quite good and could have probably taken more aperture. However time is never on ones side and I needed to leave for work at a certain time, so limited myself to some full disks with the travelling kit.
First off the full disk with the 40mm f10 OTA with a Coronado cemax barlow, camera was the FLIR GH3 ICX814. The spicule ring is easy on the full size image but the proms were being elusive at 393nm for me today.
cak-fd.-bw by Mark Townley, on Flickr
cak-fd.-colour by Mark Townley, on Flickr
Next up the Lunt50 etalon on my ED60 scope, again with the same barlow and camera. The proms were being much more obliging in longer wavelengths and there is a lot of detail on the limb for those who fancy an explore of the image at full size.
Ha-fd-ss-bw by Mark Townley, on Flickr
Ha-fd-ss-colour by Mark Townley, on Flickr
I did try double stacking this setup with my other Lunt50 etalon, and while visually the image is excellent, when imaging it's just not as 'flat' as with the etalon used in the above shots on my SM90. Maybe i'm just getting fussy as my solar journey progresses!
Hoping for another go at imaging in the morning assuming the weather obliges!
Mark
First off the full disk with the 40mm f10 OTA with a Coronado cemax barlow, camera was the FLIR GH3 ICX814. The spicule ring is easy on the full size image but the proms were being elusive at 393nm for me today.
cak-fd.-bw by Mark Townley, on Flickr
cak-fd.-colour by Mark Townley, on Flickr
Next up the Lunt50 etalon on my ED60 scope, again with the same barlow and camera. The proms were being much more obliging in longer wavelengths and there is a lot of detail on the limb for those who fancy an explore of the image at full size.
Ha-fd-ss-bw by Mark Townley, on Flickr
Ha-fd-ss-colour by Mark Townley, on Flickr
I did try double stacking this setup with my other Lunt50 etalon, and while visually the image is excellent, when imaging it's just not as 'flat' as with the etalon used in the above shots on my SM90. Maybe i'm just getting fussy as my solar journey progresses!
Hoping for another go at imaging in the morning assuming the weather obliges!
Mark