The Skywatcher Solarquest mount was proving it's worth again today, and a brief clear (hazy?) spell this morning meant I was out imaging in minutes. Only time for a quick full disk in CaK but better than nothing. Even if the sun is quiet it is possible to see the cycle 25 solar jet stream bands of sub surface activity marked by horizontal lines of inactive plage. Taken with the Coronado SM40 at f20 using a 2x Cemax barlow, home brew CaK filter and the FLIR Grasshopper GH3 91s6M camera. Given the haze, scudding clouds and how few frames I took i'm pleased with how this disk has come out.
Tuesday 16 February 2021
CaK Full Disk 16th February
The Skywatcher Solarquest mount was proving it's worth again today, and a brief clear (hazy?) spell this morning meant I was out imaging in minutes. Only time for a quick full disk in CaK but better than nothing. Even if the sun is quiet it is possible to see the cycle 25 solar jet stream bands of sub surface activity marked by horizontal lines of inactive plage. Taken with the Coronado SM40 at f20 using a 2x Cemax barlow, home brew CaK filter and the FLIR Grasshopper GH3 91s6M camera. Given the haze, scudding clouds and how few frames I took i'm pleased with how this disk has come out.