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Friday, August 09, 2013


NEO 2005 WK4, August 9, 2013

NEO 2005 WK4 at 8:30 UT 9 August, 3 and a half hours after closest approach. 6x15 second images taken with iTelescope T5. The images were stacked in ImageJ and a Max intensity Z project made, then despeckeled and inverted.The sequence is very gappy, like my last sequence, as cloud rendered most frames useless (I took 20 frames)Animated gif from the 6 frames

Near Earth Asteroid 2005 WK4 came close to Earth on August 9 at 05:02 UT at distance of 0.02 AU (around 8 Earth-Moon distances). It has an estimated diameter of 420 m. The asteroid is currently magnitude 14.4 then brightens to 14.0 as it moves away.My previous images are here.

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