Sunday 14 March 2021

Ha Closeups 7th March

ars-ha-q60-colour plage-q60-colour Given the poor conditions with boiling seeing I decided to try a new configuaration to try and get some results from the day in Ha. Using the ED80 stopped down to 60mm to give me f10, I used the Airylab 2.8x telecentric to give an overall f28 at the Quark and the IMX174 camera. I ended up having capture 4000 frame runs to get some usable data, but on the whole these have worked and gives me a small aperture setup to use when the seeing conditions just aren't working for the larger apertures.