SKY2000 Catalog Binary Header Format

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