It consists of the assembly of 12 CCD pictures. 1998BM10 was moving in the Leo constellation. Every frame is the sum of five 30 seconds CCD pictures. The field of view spans only 3 x 3 arcminutes. I estimated the brightness of 1998BM10 around 17 mag.
North is up, East is left.
I elaborated the original images with an unsharp filter. Note the very faint trail left by the asteroid. It may not be reproduced in any form without written permission of the copyright owner. Permission is granted for non-commercial and educational purposes only. Any reference must indicate the source and include a link tag to this site.