Sunday, 15 July 2018

Ha Full Disk - 15th July

Other than the bright plage that forms the remains of ar12713 that we saw on a previous rotation the sun is essentially blank.  Possibly the old remains of ar12715 has just rounded the eastern limb and shows itself as an area of turbulent plasma split with a hair line filament at the demarcation between the bipolar fields.  There are also some small filament towards the solar poles again which seems to have been a feature of the sun this summer.  Taken with the Lunt50 etalon, Daystar Quark and IMX249 chipped camera.