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geoflewis last won the day on November 12 2023
geoflewis had the most liked content!
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geoflewis started following Last Jupiter of the season 19/1 , What did you see tonight? , Cetus A group, another rework and 7 others
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It's a cracking image Dave. As others have said, you're too harsh on yourself.
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Excellent images Kostas, good to see that you’ve broken the back of the collimating issues. Whilst you’ll still need the ADC for Saturn, with Mars and Jupiter both up at ~60 deg elevation later this year, it’s questionable whether there’s any benefit using an ADC for them. I found that the loss from the additional ADC prism glass was greater than the gain from dispersion correction on Mars once it was above ~50 deg last time around. It will be a case of try it and see. Unfortunately, Mars is going to be a pretty small (<15”) this coming apparition - we never get the best views when it is high in the northern hemisphere. Those in the southern hemisphere are the ones that periodically get it both big and high. Geof
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SGL 2023 Challenge 10 - Planets and Special Events
geoflewis replied to MartinB's topic in Imaging Challenge Winners 2023
I was very pleased to find this waiting for me when I returned home after my replacement hip surgery done on Wednesday (14/02). Thank you. -
SGL 2023 Challenge 10 - Planets and Special Events
geoflewis replied to MartinB's topic in Imaging Challenge Winners 2023
Thanks for the 2nd place and congratulations to Kostas and Nigella for their respective 1st and 3rd places. There were many great images posted, so I’m really pleased to make the top 3. -
First light 12" (Skywatcher 300P Goto) - Jupiter (01/02/24)
geoflewis replied to Kon's topic in Imaging - Planetary
Wow Kostas, you don't hang about...!! Sorry that I've only just seen this thread and what a great first light 👏 -
Very nice Harvey.
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That's lovely Kostas, very nicely done.. The saturation is just enough to bring out the colours without becoming garish.
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Excellent images
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Last Jupiter from this apparition (18/01/24)
geoflewis replied to Kon's topic in Imaging - Planetary
A very nice Jupiter swansong for this apparition Kostas -
Excellent image Harvey. It's good to see how much more of the left limb is passing into jovian nighttime shadow since opposition nearly 3 months ago.
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Very nice image Harvey. I think it was a good night as I've seen a few decent images of that double pre occultation event. Unfortunately I didn't cjeck what was coming up and chose that day to swap my planetary rig for DSO camera and rebalanced the scope, so I missed imaging it. It's nice to see what you and others got though.
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It's worth experimenting with the LD. I change mine sometimes, but usually between 0.65 amd 0.8, so Kostas suggestion of 0.7 seems good to me.
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Nicely captured Ian, but there's an artefact on the left limb, which may have come from WinJupos, so I'm wondering what LD value you used for derotation, also whether you used manual derotation?