Solar prominences on the western limb: 02/19/25 

 


The Sun in Ha


Object Data

Object type: Solar
Magnitude: -26.7
Constellation:  
Distance: 8.3 light-minutes 
   
Notes: An interesting forest of prominences this morning that held together for a few days.
This image captures active sunspor regions 3990 and 3994 (below proms) and several filaments.

Exposure Data

Date: 02/19/25
Location: Backyard Solar Observatory, Carlsbad, CA
Lense: Lunt 100THa solar scope; double stack with 18mm blocking filter.  
Camera: ZWO ASI174mm camera (Sony IMX 174)
Mount: Losmandy G-11
Exposure time: Frame rates of 128 f/s for surface layer and 34 f/s for prominence.
Exposure time total:  
Notes: Registered and combined 15% of the best 3000 frames; combined and inverted

 

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