Once again the sky was not great, but every now and then I could see the Moon and Jupiter quite clearly. So I managed to take a picture (a bit overexposed perhaps) and I caught the 4 Galilean satellites – Io Europa, Ganymede and Callisto. So then I started to wonder, how to tell them apart. Sky and Telescope have a super Java tool called Jupiter’s Moons, which is worth a look.
So here is my first picture of Jupiter, with the moons, as follows
Europa, Jupiter, Io (about to be eclipsed), Ganymeade, and Callisto.
This is a direct view image as I was using a Nikon D50 DSLR Oct 4 2009, 22:25.
F/5.6, Exosure 1/2 second. 300mm Focal Length. ISO 400, Shutter about 2 seconds
As far as I can tell the star to the left of Jupiter is IOT Cap, 32 Cap in the consellation Capricornus.
Maybe you should invest in something like these lens;
http://www.overstock.com/Electronics/Rokinon-650-2600mm-Telephoto-Zoom-Lens-for-Nikon/3864796/product.html
http://www.overstock.com/Electronics/Rokinon-800mm-1600mm-F8.0-Nikon-Mirror-Lens/3864758/product.html
Both include 2X doublers, I have seen any sky photos, but I can’t thing of a better use for them.
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