Observation by Bill Leatherbarrow: Venus in UV, 2018 June 11

Uploaded by

Bill Leatherbarrow

Observer

Bill Leatherbarrow

Observed

2018 Jun 11 - 16:11

Uploaded

2018 Jun 12 - 16:51

Objects

Venus

Equipment

OMC300 Mak-Cass
ASI290MM camera
Baader UV filter

Location

Sheffield

Target name

Venus

Title

Venus in UV, 2018 June 11

About this image

At last some fair seeing for a UV Venus.

Files associated with this observation

VENUS (resize)_2018-06-11_17-11UT_UV_BLeatherbarrow.jpg (32.9 kB)

Like this image

Chris Dole, Nick Hewitt, Jeremy Shears, David Basey, Ron Johnson, Charles Graham Taylor, Andy Wilson, Chris Hooker, Peter Carson

Comments

Chris Hooker, 2018 Jun 20 - 21:05 UTC

Hi Bill,

I'd like to suggest an easy way to improve the appearance of your Venus images. You can suppress the rather noisy background by stretching the histogram slightly in Registax. It's one of the options on the Wavelet tab, and I use it for my Mercury images. You will probably need to check the box that says Log-based graph, then try dragging the left-hand slider to somewhere around the first peak and click Stretch. Done carefully it shouldn't affect the brightness levels on the disc itself, but will give you a nice black background.

Cheers,

Chris

Bill Leatherbarrow, 2018 Jun 20 - 21:55 UTC

Many thanks for the suggestion, Chris. I’ll certainly try it. As with your current Mercury images (which, by the way, are stunning), Venus is a testing subject at present, particularly when trying to capture UV images in broad daylight. So I’m grateful for any advice.

very best,

Bill

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