◎ Primary ヘッダ 0........1.........2.........3.........4.........5.........6.........7... 1234567890123456789012345678901234567890123456789012345678901234567890... SIMPLE = T / Standard FITS format BITPIX = 8 / character information NAXIS = 0 / No image data array present EXTEND = T / There may be standard extensions ORIGIN = 'CDS ' / Site which wrote the tape DATE = '23/09/83/' / Date tape was written COMMENT AGK3 Astrometric catalog, formatted in FITS Tables Format. COMMENT see: W. Dieckvoss, Hamburg-Bergedorf 1975. END ◎ extension ヘッダ (ブロックを改める)。 0........1.........2.........3.........4.........5.........6.........7... 1234567890123456789012345678901234567890123456789012345678901234567890... XTENSION= 'TABLE ' / Table extension BITPIX = 8 / 8-bits per "pixel" NAXIS = 2 / simple 2-D matrix NAXIS1 = 74 / No. of characters per row (=74) NAXIS2 = 3 / The number of rows (=3) PCOUNT = 0 / No "random" parameters GCOUNT = 1 / Only one group TFIELDS = 16 / there are 16 fields per row EXTNAME = 'AGK3 ' / Name of the catalog TTYPE1 = 'NO ' / The star number TBCOL1 = 1 / start in column 1 TFORM1 = 'A7 ' / 7 character field TTYPE2 = 'MG ' / stellar magnitudes TBCOL2 = 8 / start in column 8 TFORM2 = 'E4.1 ' / xx.x SP floating point TUNIT2 = 'MAG ' / units are magnitudes 途中略 TTYPE16 = 'BD ' / Bonner Durch. star number TBCOL16 = 68 / start in column 68 TFORM16 = 'A7 ' / 7 character field TNULL16 = ' ' / blank indicate null AUTHOR = 'W. Dieckvoss' REFERENC= 'AGK3 Astrometric catalog, Hamburg-Bergedorf, 1975' DATE = '14/07/82' / date file was generated END ◎ 拡張部データレコード (ブロックを改めて書き始める)。 0........1.........2.........3.........4.........5.........6.........7.... 12345678901234567890123456789012345678901234567890123456789012345678901234 +82457 11.4 G5 15 30 57.480 +82 15 06.18 1960.37 2 -005 +006 29.99 +82 459 +82458 11.4 F5 15 32 41.151 +82 10 17.17 1958.36 2 -004 +006 27.97 +82 460 +82459 12.1 15 32 42.107 +82 40 28.83 1960.37 2 -004 +006 29.99 +82 461