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Venus Transit 2012

by Alejandro Tombolini

Introduction

Publicated in Monthly Contest - Complete description of the transit image - Main notes: FourierTransform to eliminate pattern. Date: Jun 2012

Image Details

  • Object: Sun and Venus.
  • Camera: Point Grey.
  • Telescope: Lunt 60 mm - Focal Length 500 mm - f/8.3 - Barlow 2x.
  • Images: 934.
  • Total time: 31 seconds.
  • Credits: Andrés Vattuone and Alejandro Tombolini
  • Program: Registax - PixInsight.

Processing

The .raw images where converted to .fit with BathConvertion Script and the aligned and integrated with Registax.

Venus Transit

FourierTransform. I tried to eliminate a faintest lines in the background.

Venus Transit

Venus Transit

The new image without lines.

Venus Transit

Built a mask to be used to give a white effect in the Sun. Venus is deleted in the mask because the white effect I am looking for is only in the Sun.

Venus Transit

Venus Transit

Venus Transit

Build another mask to be used protecting the background and give color only to the Sun.

Venus Transit

ChannelCombination.

Venus Transit

HistogramTransformation protecting the background whit mask 2.

Venus Transit

HistogramTransformation protecting the background whit mask 1 - Note the value of Midtones.

Venus Transit

MultiscaleMedianTransform for increasing details without mask.

Venus Transit

New mask to protect background.

Venus Transit

MultiscaleMedianTransform to Sun with mask.

Venus Transit

New mask to protect background and Sun.

Venus Transit

MultiscaleMedianTransform to increase details in the solar flares.

Venus Transit

Noise reduction.

Venus Transit

ExponentialTransformation protecting Sun with mask 1.

Venus Transit

New mask to protect background.

Venus Transit

UnSharpMask.

Venus Transit

Little crop using DynamicCrop tool.

Venus Transit

Signature.

Venus Transit

Final image.

Venus Transit

Last Update: 23/03/2014 22:51 UT

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