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AR2804 in High Res | Feb 26th 2021


MalVeauX

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Heya,

 

Woke up to fog, but was blessed with some good seeing and a clear sky this morning. I was able to get close to some limits with high resolution setup and after seeing deteriorated went to a moderate resolution setup for a wider field of view. I spent most of the time on AR2804 as it has evolved into a really interesting sunspot with a huge lovely penumbra with lots of fibrils and the plage around it has lots of great activity including minor flaring. Upper chromosphere and lower photosphere represented in 656nm and 600nm wavelengths to handle the seeing. Seeing was spiking to 0.8 arc-seconds this morning, so that's where I captured the 200mm data, and when seeing was closer to 1 & 1.2 arc-seconds I captured the 120mm data. I was able to piece together a short time lapse of AR2804 from the 200mm data to see how rapid the plasma was moving and represented real time of only about 4 minutes.

 

Time Lapse (4 minute) of AR2804 in High Res:

 

https://astrob.in/full/ta0dwp/0/

 

Colored High Res (200mm):

 

 

AR2804_Cells_600nm_200mmF10_290MM_81frames_Colored_02262021

 

AR2804_HA_200mmF10_181frames_290MM_Colored_02262021

 

AR2804_HA_200mmF10_181frames_290MM_Colored_Inverted_02262021

 

Colored Wide Field (120mm):

 

AR2804_Cells_600nm_120mmF10_290MM_101frames_Colored_02262021

 

 

 

AR2804_HA_120mmF10_101frames_290MM_Colored_02262021

 

AR2804_HA_120mmF10_101frames_290MM_Colored_Inverted_02262021

 

Seeing Conditions:

 

200mm's conditions (0.8 arc-seconds):

 

SeeingConditions_200mm_02262021.thumb.jpg.c5d9605370ef094af6aaad091462975e.jpg

 

120mm Conditions (1 to 1.2 arc-seconds):

 

SeeingConditions_120mm_02262021.thumb.jpg.4899c5b4f506db99304200d6e96bc6dc.jpg

 

Equipment:

 

C8 Edge HD + 214mm D-ERF + Baader Red CCD-IR Block Filter (2nd D-ERF)
+ PST Etalon + 10mm BF + ASI290MM (HA High Res)
+ Baader ND3 + ASI290MM (600nm Photosphere High Res)

 

120mm F10 Refractor + Baader Red CCD-IR Block Filter (Sub-aperture internal D-ERF)
+ PST Etalon + 10mm BF + ASI290MM (HA wide field)
+ Baader ND3 + ASI290MM (600nm Photosphere wide field)

 

Solarsetup_02262021.thumb.jpg.5ec8734f4c04271975d7f8d7f9a17811.jpg

 

Very best,

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