astrometry-data-tycho2-09-littleendian - 2-4 main

The astrometry engine will take any image and return the astrometry
world coordinate system (WCS), a standards-based description of the
transformation between image coordinates and sky coordinates.
.
This package contains the 4109 index file from the Tycho-2 catalog
containing skymarks of sizes 44 arcminutes to 60 arcminutes. Byte order
is litte endian.