We’ve had a couple of clear nights recently so I decided to get the telescope out again and have a look at Jupiter. It was very clear and on two nights in a row I was able to use quite a high magnification to see a lot of detail on the planet’s surface. The four Galilean moons were clearly visible and on the fist night, one of them, was silhouetted against Jupiter’s disc as it passed between the planet and me.
On the second night, I got the CCD camera out and plugged it on to the laptop. I spent about an hour recording video and this time I was even able to record two of the four moons visible. In the photo, you can see Europa on top and Io beneath it.
In my previous post about Jupiter, I said you could see the red spot on the planet’s surface in the photo. I was mistaken and that blemish seems to be something to do with the images I took. In this photo, you can clearly see a darker blob in the lower cloud band but I’m still not 100% sure it’s the spot.
The spot is a storm that has been blowing for at least 200 years and should be visible from earth based telescopes. It’s a massive storm – 25,000km by 15,000km but it varies over time.
It revolves around the planet once every 12 days, so I may have been unlucky when observing. I shall keep trying.