Contains:  Solar system body or event
Sun - Ha and CaK - 30 March 2021, 



    
        

            Roberto Botero

Sun - Ha and CaK - 30 March 2021

Acquisition type: Lucky imaging
Sun - Ha and CaK - 30 March 2021, 



    
        

            Roberto Botero

Sun - Ha and CaK - 30 March 2021

Acquisition type: Lucky imaging

Equipment

Imaging Telescopes Or Lenses
Christen-Moonraker 94mm f/7 refractor
Imaging Cameras
ZW Optical ASI120MM st4
Mounts
Astro-Physics 1100GTO
Filters
Lunt Solar Systems Lunt CaK B1800 · Coronado SME-60
Accessories
Antares 0.5x focal Reducer
Software
AstroSurface · ImPPG · FireCapture 2.7 · Photoshop CS6 Extended

Acquisition details

Date: March 30, 2021

Time: 11:00

Frames:

1800

FPS: 15.00000

Focal length: 1500

Seeing: 3

Transparency: 10

Resolution: 3083x3060

Data source: Backyard

Description

A number of clear days just before Easter in March 2021. Seeing was average and my flats could not correct fully the Newton rings from my old ASI120MM. Practice for the summer months when the Sun will be higher from earlier.

Hydrogen Alpha image taken at 1300mm is a 9 panel mosaic. The CaK image was taken later in the morning using a 0.5x focal reducer at the native 700mm focal length. Variable seeing is noticeable in the panels of the larger Ha image.

Comments

Revisions

  • Final
    Sun - Ha and CaK - 30 March 2021, 



    
        

            Roberto Botero
    Original
  • Sun - Ha and CaK - 30 March 2021, 



    
        

            Roberto Botero
    B

B

Description: CaK at 330mm focal length

Uploaded: ...

Histogram

Sun - Ha and CaK - 30 March 2021, 



    
        

            Roberto Botero

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