Photography ... astronomy ... art ... design ... technology
(... and the odd rant)

All of these make my world go 'round, to some extent, and they will all be found here at some time or other. Some of the photography can be purchased from my Redbubble site. I can also be found at Tempus Fugit (no longer being updated).

Saturday, October 6, 2007

Comet Encke fishtailing across the sky

In this delightful time-lapse image from NASA's Astronomy Picture of the Day, the tail of short-period comet Encke can be seen flailing about in the solar wind.

Go to for the animation. The comet is small (it orbits the sun about every 3 years, so has lost a lot of its mass over time), but the sequence is quite fascinating – normally, a comet is so slow-moving that you need to watch carefully for hours or days, to see any change. On this occasion, the wonders of time-lapse have saved you the wait.

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