Nanosail movie tumbling in space

From: Ralf Vandebergh (
Date: Tue Jun 07 2011 - 10:44:17 UTC

  • Next message: Tony Beresford: "Satobs jun 07 2011 at 8597"

    subject: movie of Nanosail tumbling in space
    Movie of Nanosail  made using frames taken 9 seconds apart. Only the very 
    sharpest frames are used, less is more. The result looks remarkable ;  this 
    must be the first movie showing the Sail actually tumbling in space. Note 
    that one rotation visible in the movie might actually be a compression of 
    several rotations which could not be individually recorded due to lost 
    frames, inevitable connected to the manually tracking method used with the 
    very high imaging scale.
    Note the irregularity of illumination of certain parts of the Sail which 
    could cause the sub-flashes observed by visual observers. To demonstrate how 
    the part of the pass, presented in the movie would
    look like for the naked-eye, I have artificially lowered the resolution to 
    spot-size, comparable with naked-eye view in the second smaller animation, 
    containing the same frames; we see indeed flashing.
    Best regards,
    Ralf Vandebergh
    -------------- next part --------------
    An HTML attachment was scrubbed...
    Seesat-l mailing list

    This archive was generated by hypermail 2b29 : Tue Jun 07 2011 - 10:46:34 UTC