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Thread: First Transit View! (Of Io)

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    Default First Transit View! (Of Io)



    Only two days ago, I decided I was going to watch this transit of Io, mostly because it was at a good time.

    So I started viewing at about 10:00 EST and Io was still 45 minutes away from crossing Jupiter's path. The shadow crossed first at 10:20 or so and moved right alone one of the equatorial bands (I think the southern band... if someone could correct me I would appreciate that!) followed by the actual moon 20 minutes or so later. I watched another half an hour but didn't manage to see Io.. I could only see it's shadow cross the planet.

    I predominantly viewed with my 12.5 SmartAstronomy EP to give me 160x mag. The image was small, but quite detailed. I could make out both equatorial bands, one of the temperate bands, and both polar regions. The bands were dark with a sort of red tinge to them while the polar regions were more of a blue/black colour.
    I also tried using my barlow with my 12.5 EP to give me 360x mag. I'd never been able to use this much magnification before, but the seeing was good enough that I could still make out detail (albeit, not as much as without the barlow) of the planet, and just *barely* make out the shadow of Io. So I cracked out this setup only once in a while during the transit.. I preferred viewing without the barlow despite the smaller size.

    It finally got too cold so I decided to call it a night. But not before taking a quick peek at M42 (Though too faint for me to see much of anything: LP) and M45. M45 better through my binos as usual. I really need to get a new EP.. something in the range of 32-40mm.


    It was amazing to see, it really puts the bodies of the solar system in perspective!
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    KathyNS (11-08-2012)

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    Default Re: First Transit View! (Of Io)

    Great report!

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    Default Re: First Transit View! (Of Io)

    Great report. It seems like you had a good time. I still have to see my first transit. I hope to catch one soon if the sky ever clears up.
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    Default Re: First Transit View! (Of Io)

    Nice report!! I wanted to see this, but I was at work. I did catch the GRS at midnight, though. Shadow transits are great. Basically a solar eclipse on Jupiter's surface, but nobody on the planet to enjoy it. At least we can enjoy them from afar.

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    Dob 1250mm f/4.9

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    Default Re: First Transit View! (Of Io)

    Great report!

    I use the 36mm Hyperion on the Pleiades, always a great view
    Night:
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    Default Re: First Transit View! (Of Io)

    Thanks for the report. It was too cloudy here to get to see the transit.
    Bill

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