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Venus 14/4/15

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Astrograph
(@astrograph)
Posts: 129
Estimable Member
Topic starter
 

As it now clears my roof I have turned my attention to Venus while it is visible.

Venus 14/04/15 by astrograph ltd, on Flickr

This was taken using an APM 152/1200 with a Baader FFC Barlow at 3X for 3600mm FL. A Pierro Astro Atmospheric Dispersion Corrector was used to clear up the very visible dispersion given Venus is so bright. I used a Point Grey Blackfly (ICX692 sensor) and used an Astronomik IR642 filter for the Red channel and a Wratten 47 (deep violet) for the Blue, then produced a synthetic Green channel from these in PS for a full colour image. I captured data for 2 minutes with each filter.

The video was processed in PIPP then stacked is AS2 with 1.5x Drizzle, slightly sharpened in Regstax 6 then combined in PS.

I'm quite pleased with this initial image as cloud detail is just visible. I think experimenting a bit more at the UV end will tease out a few more clouds and maybe increasing magnification to 4X.

 
Posted : 15/04/2015 12:27 pm
Brian Blake
(@brian-blake)
Posts: 597
Honorable Member
 

Andy this must be one for the video wall.

 
Posted : 15/04/2015 12:36 pm
Andy Sawers
(@andy-sawers)
Posts: 742
Honorable Member
 

Gosh, yes, Brian! Great shot, Rupert, I've got it downloaded for the next video.

 
Posted : 15/04/2015 12:51 pm
Astrograph
(@astrograph)
Posts: 129
Estimable Member
Topic starter
 

Thanks guys.

Andy, slow down! This is the first shot of Venus managed, I have others to process and more is becoming visible each day so I am sure we can do better than this.

I also imaged Saturn for the first time this year last night and there is a bit more to come from Jupiter yet. Not to mention full disc Cak and Ha images. You will have plenty for next months video wall, don't worry!

 
Posted : 15/04/2015 1:03 pm
Andy Sawers
(@andy-sawers)
Posts: 742
Honorable Member
 

Okay, Rupert. I look forward to seeing those!

 
Posted : 15/04/2015 1:54 pm
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