Sol in H⍺- 18 July 2021

[Hughsie]

Hot clear start to the day on Sunday 18th with three active regions on show but little in the way of prominences.

 

Images 1 & 2 - The usual full disc so we can get our bearings, presented in RGB and inverted. 166 of the best 1,000 stacked. Exposure time 2.7 ms, Gain = 0.

     

 

Images 3 & 4 - AR12842 classification Cso showing a nice filament and prominences (on inverted image). 149 of the best 1,00 frames stacked. Exposure time 12 ms, Gain = 55. Captured with 3x Barlow.

     

 

Images 5 & 6 - AR12842 in closing detail captured with a 5x Powermate. 70 of the best 500 frames stacked. Exposure time 30 ms, Gain = 100.

     

 

Images 7 & 8 - A new active region coming into view, AR12844, on the south east limb classified Axx. 140 of the best 1,000 frames stacked. Exposure time 12 ms, Gain = 55. Captured with a 3x Barlow.

     

 

Images 9 & 10 - AR12845 approaching the south west limb. It is apparent from this image that this active region is bipolar though it is not clear whether there is a penumbra. Classification Bxi. 150 of the best 1,000 frames stacked. Exposure time 12 ms, Gain = 55. Captured with a 3x Barlow.

     

 

Images 11 & 12 - Close up of AR12845 captured using a 5x Powermate. Here it becomes clearer that this is no penumbra. 93 of the best 500 frames stacked. Exposure time 30 ms, Gain = 100.

     

 

Thanks as always for dropping by.

 

John

[Ceramus]

Nice images, great detail, thanks for sharing.

[kirkster501]

Lovely mate!  A sight to behold.

[Rusted]

Well done!

 

[Chris-h]

Lovely images!