On Sunday morning, I was able to capture my first Jupiter moon transit for the season, with the volcanic moon Io transiting the gas giant. I also took the opportunity to create my first Jupiter animation for the season, hopefully the first of many to come.

It was another busy morning (like Friday morning) with an ISS pass, a lovely crescent Moon and then of course Jupiter. Seeing was quite reasonable, and improved as Jupiter climbed out of the muck, reaching an altitude of about 39° literally 5 minutes before sunrise when I captured my last image. The sky was already blue and by this time I could only just see Jupiter naked eye.

The image below is the best from the session, taken 10 minutes before sunrise and shows Io just about to leave the disc of Jupiter. Oval BA is rising on the right.

Jupiter with Io Transit

Please read on to see the animation and to read more about the capture and processing.

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This morning there was a beautiful conjunction featuring the waning Crescent Moon and Jupiter, less than 2° away. 

Looking through the eyepiece at Jupiter, she appeared to have an extra moon in an odd position – in fact it was a field star, HIP105256. The Galilean Moons were close by – Io was right next to Jupiter, with Europa and Callisto a little further away. Ganymede was in transit but was not observed.

I was able to fit the pairing in the field of view of my Canon 350D when attached at prime focus to my Saxon ED80, so I snapped off a few images before heading to work. Unfortunately I didn’t nail the focus and didn’t notice until I’d finished.

Please click the image to see the full-size.

Moon, Jupiter and Stars Conjunction. Click image for full-size.

While viewing the images on the train, I noticed that the star 29Cap was egressing from being occulted by the Moon. So I combined 8 frames into an animation showing the motion of the Moon through the stars.

Please read on to see the animation and to read more about the image.

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