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The Sun - 2nd Apr 2020


David Smith

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Unexpected gap(s) in the cloud cover this morning allowed me a look at the new AR. Had hoped to get some hi res Ca-K shots but seeing was average at best and there was a bit of a breeze to boot (not good with the Evostar on the mount). Initial session with the Evostar was curtailed by cloud but then skies cleared again a little later so grabbed the Bresser for some full-disks.

So here's the initial Evostar shots at native 1000mm focal length. The AR in Ca-K and White Light and then the faint prominences in Ca-K

20200402_Ca-K_AR12759.thumb.png.e2f92926b14dc231ed67714dc681fdbd.png

 

20200402_WL_AR12759.thumb.png.a1249ed263d908552e3d020cb1cf278e.png

 

20200402_Ca-K_Prom1.thumb.png.7110283b7ed4474379cf2e8f8dfbea7e.png

 

20200402_Ca-K_Prom2.thumb.png.566597cb9940a5e72c1dcde18198ef89.png

 

Then the full disk shots with the Bresser stopped down to 50mm. The Ca-K disk is a combination of two layers; one for proms and another for 'surface'.

20200402_WL_AR102xs_FD.thumb.png.ddd40086621960d35bd3d7d9b42ddee0.png

 

20200402_Ca-K_AR102xs_FD.thumb.png.c4ef69a39a55e0c8bed3da02e2ec7f29.png

 

 

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