The image shows motion of a potentialy hazardous asteroid 1999 BJ8.
Image was taken on 1999 February 15 from
20:24:41 to 20:32:51 UT with 0.57-m f/5.2 reflector +
CCD camera SBIG ST-8 of Klet' Observatory.
The field of view is 16 to 10
arcminutes with north to the top and west to the right.
Asteroid is arrowed.
Observers M. Tichy and Z. Moravec.