Twinkle, twinkle, little star

Well Sirius was twinkling tonight and I played around again. This one was meant to be in focus but I like the different colours that the camera captured and if you want to see it like a colourful snake go here

An explanation from http://earthsky.org/: Sirius can be seen to twinkle many different colours and the brightness, twinkling and color changes sometimes prompt first-time observers to report Sirius as a UFO. But these changes have nothing to do with Sirius. Rather, they are what happen when such a bright star as Sirius shines through the blanket of Earth’s atmosphere. The light from Sirius, which often appears fairly low in the sky from the mid-north latitudes, passes through a long column of air before it reaches our eyes. Changes in density and temperature of this air affect the light and cause the flickering and shimmering we see when we gaze at this star. This happens for other stars, too, but it is more noticeable for Sirius because it is so bright, and because it appears low in the sky.