Yale Bright Star Catalog 5 (BSC5) Catalog Binary Header Format

The first 28 bytes of both BSC5 and BSC5ra 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
Integer*4 STARN=9110  	Number of stars in file
Integer*4 STNUM=1	0 if no star i.d. numbers are present
			1 if star i.d. numbers are in catalog file
			2 if star i.d. numbers are  in file
Logical*4 MPROP=1	1 if proper motion is included
			0 if no proper motion is included
Integer*4 NMAG=-1	Number of magnitudes present (-1=J2000 instead of B1950)
Integer*4 NBENT=32	Number of bytes per star entry