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Lunch June 19, 2017 - Coronado 60 DS

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#1 Glenn Graham

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Posted 19 June 2017 - 05:58 PM

Captured some images over lunch today. Haven't seen the sun this active for a long time. Many choices of filaments, prominences, and active areas to spend time on. Only had time for a full disk and a couple of close-ups.

 

 

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#2 Glenn Graham

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Posted 19 June 2017 - 06:00 PM

Close up:

 

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#3 Glenn Graham

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Posted 19 June 2017 - 06:01 PM

Close up:

 

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#4 MalVeauX

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Posted 19 June 2017 - 06:03 PM

Great detail, that new prom is awesome!

 

*Hides in the rain* :(

 

Very best,



#5 nickatnight

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Posted 19 June 2017 - 07:16 PM

Very nice! waytogo.gif



#6 GUS.K

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Posted 20 June 2017 - 03:56 AM

Fantastic captures Glenn.



#7 chrishalpha2017

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Posted 20 June 2017 - 04:12 PM

woaw: i love it!!  wish some day I will have the opportunity o look through a coronado...



#8 Glenn Graham

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Posted 20 June 2017 - 05:38 PM

Thanks everybody. Big thanks to those here that helped provide guidance on equipment and imaging technique. Its nice to start seeing what this setup is capable of. Since I wanted a small refractor for general observing and travel (more on that later) I decided not to go with a dedicated solar scope. Instead, I went with a TeleVue76 (built like a tank and fits under airplane seat) and a pair of removable external 60mm meade/coronado etalons. Consistent with Bob's input, the external etalons provide very even filtering across the field of view (no sweet spot issues) even at low power full disk (26.4x / 62deg afov) and the double stack produces great contrast. Group input was also instrumental in choice of camera (ASI120mm) and my getting a tilt device (ZWO T2) to address newton's rings. 


Edited by Glenn Graham, 20 June 2017 - 05:42 PM.



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