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Observing and Imaging Group
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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
Andy this must be one for the video wall.
Posted : 15/04/2015 12:36 pm
Gosh, yes, Brian! Great shot, Rupert, I've got it downloaded for the next video.
Posted : 15/04/2015 12:51 pm
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
Okay, Rupert. I look forward to seeing those!
Posted : 15/04/2015 1:54 pm
