Contains:  Solar system body or event
A golden Venus....the blue-violet-UV spectrum shifted to the visible spectrum, 



    
        

            Niall MacNeill

A golden Venus....the blue-violet-UV spectrum shifted to the visible spectrum

Acquisition type: Lucky imaging

Imaging telescopes or lenses: Celestron C14 Edge HD

Imaging cameras: ZWO174MM

Mounts: Software Bisque Paramount MX+

Software: Autostakkert! 2 Autostackert! 2  ·  Adobe Photoship CC  ·  Software Bisque Sky X Professional  ·  Registax 6  ·  PixInsight  ·  Firecapture 2.5  ·  WinJupos 10.3.2

Filters: ZWO LRGB 1.25"  ·  Astrodon UVenus  ·  Wratten #47 Violet


Date: March 22, 2020

Time: 08:05

Frames: 60000

FPS: 200.00000

Focal length: 3910

Seeing: 3

Transparency: 7


Resolution: 797x798

Locations: Home property, Wattle Flat, NSW, Australia

Data source: Backyard

Description

I imaged Venus across a range of wavelengths last evening. The seeing was fair to good. This is a false colour image, effectively spectrum shifted from the blue-violet end of the spectrum to the visible spectrum. I mapped Blue to Red, Violet to Green and UV to Blue.

After balancing the RGB channels, this golden colour was the result. More often when I do this the resultant colour is more blue as Venus is bright in UV. However, as you can see from the UV image, the banding is distinct but there are large dark areas, i.e. those with less UV light. Therefore on balance the colour shifts towards the yellow/ red end of the visible spectrum. I have found previously, especially when the seeing is very good, structure in all three channels. Whilst the patterns are often similar, like RGB channels of any of the planets, there can also be differences.

If you look carefully at the Blue channel image, you can just make out similar patterns to those in the Violet and UV images, but they are very subtle.

Version B is the unannotated RGB image

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  • Final
    A golden Venus....the blue-violet-UV spectrum shifted to the visible spectrum, 



    
        

            Niall MacNeill
    Original
  • A golden Venus....the blue-violet-UV spectrum shifted to the visible spectrum, 



    
        

            Niall MacNeill
    B

B

Description: RGB image - unannotated

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A golden Venus....the blue-violet-UV spectrum shifted to the visible spectrum, 



    
        

            Niall MacNeill