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huge prominence this morning May 18th , 2022

Solar
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#1 chrishalpha2017

chrishalpha2017

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Posted 18 May 2022 - 03:37 AM

hello ,

This morning in a pretty hazy sky (thanks to the planes) I could still briefly make some observations and take some .Ser of a huge prominence...

 

Spectroscope in Littrow ,  grating 1800 g/mm as it was  too hazy.

 

soleil de ce matin éruption.jpg


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#2 chrishalpha2017

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Posted 18 May 2022 - 03:38 AM

2022-05-18-0649_6-U-L-  annotée réduite.jpg


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#3 chrishalpha2017

chrishalpha2017

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Posted 18 May 2022 - 03:41 AM

eruption 10_20220518_064752.036_UT annotée.jpg

 

The slit of the spectroscope had to be 100 times wider than usual (1.0 mm instead of 10um )

 

And with the ASI 178mm there's still the grid when the contrast isnt high enough...

 

never mind , its great to be able to see it and take some photos.. :)

 

Chris

 

 


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#4 Tapio

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Posted 18 May 2022 - 03:44 AM

Yep, saw its last remains (last frames of timelapse going now).


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