The first 28 bytes of sky2k and sky2kra contain the
following information:
Integer*4 STAR0=0 Subtract from star number to get sequence number
Integer*4 STAR1=1 First star number in file (0 for sky2kra)
Integer*4 STARN=-299167 Number of stars in file (negative indicates J2000)
Integer*4 STNUM=1 Star i.d. numbers are in the catalog file
Logical*4 MPROP=1 True if proper motion is included
False if no proper motion is included
Integer*4 NMAG=4 Number of magnitudes present
Integer*4 NBENT=38 Number of bytes per star entry