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General >> Discussion >> 2012 BX34 close approach
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Message started by frankuitaalst on 01/28/12 at 02:07:52

Title: 2012 BX34 close approach
Post by frankuitaalst on 01/28/12 at 02:07:52

The bus sized asteroid 2012BX34 made a close approach to Earth last night , cominfg within less then 0.2LD to Earth .
If you were an observer following Earth at ca. 0.15 LD ( trailing ) would you be able to predict the asteroid would be at a near collision course with Earth ?

The animation hereunder starts about 100 days in the past and looks at Earth from a trailing point at 45.000 kms .
The asteroid appears soon after the start of the animation at the high left in yellow . It then moves smoothly to the right , but then suddenly seems to turn its back ...
The field of view is 145.
One frame last for 1.8 days . Time step was 2 hours .
The moon appears as the silvery line moving from right to left .
As the viewpoint is within the moons orbit ( 45.000 kms from Earth ) the moon passes behind the camera , so we can only see part of its orbit here.
In order to focus on the asteroid the apperent size of the asteroid was magnified by more than 10000 times.

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