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Email address: unentas@gmail.com
On
the nights of 12th- 13th January a small asteroid designated 2010AL30
passed very close to earth. It was only about 1/3 of the distance of
the moon from earth. By astronomical standards this is very close. It is probably a lump of rock about 10m in diameter. I was able to find it and image it from my home in Armidale. The picture is a 30 second exposure taken with an SBIG ST10XME CCD camera attached to the back of my 200mm diameter telescope. The exposure is guided to keep the stars from moving but the asteroid was moving quickly compared to the background stars. Over the 30 second it has visibly moved compared to the background stars. I took about 40 separate exposures and have combined them in an animation. The animation can be seen here http://users.northnet.com.au/~bohlsen/Astronomy/Movie_0001.wmv or on youtube http://www.youtube.com/watch?v=e6dmqaKkoTM  UNENTAS Photos taken at meetings in Guyra and at Kirby Station Guyra Kirby Station 100 Hours of Astronomy |
