画像の周辺で合わない件、Fitsヘッダをみると、歪み補正項はちゃんと入っていました。
SIMPLE = T / standard FITS format flag
BITPIX = 16 / bits per pixel
NAXIS = 2 /number of axes
NAXIS1 = 3056 /fastest changing axis
NAXIS2 = 3056 /next to fastest changing axis
BSCALE = 1.0000000000000000 / actual = BSCALE*file + BZERO
BZERO = 0.00000000000000000 / actual = BSCALE*file + BZERO
DATE-OBS = '2014-07-15T13:21:00' / [ISO 8601] UTC date/time of exposure start
EXPTIME = 6.00000000000E+001 / [sec] Duration of exposure
EXPOSURE = 6.00000000000E+001 / [sec] Duration of exposure
SET-TEMP = -5.0000000000000000 /CCD temperature setpoint in C
CCD-TEMP = -5.0775785446166992 /CCD temperature at start of exposure in C
XPIXSZ = 12.000000000000000 /Pixel Width in microns (after binning)
YPIXSZ = 12.000000000000000 /Pixel Height in microns (after binning)
XBINNING = 1 / Binning level along the X-axis
YBINNING = 1 / Binning level along the Y-axis
XORGSUBF = 0 /Subframe X position in binned pixels
YORGSUBF = 0 /Subframe Y position in binned pixels
FILTER = 'Ic ' / Filter name
IMAGETYP = 'Light Frame' / Type of image
OBJECT = 'M11 ' / Target object name
OBJCTRA = '18 51 04.00' / [hms J2000] Target right ascension
OBJCTDEC = '-06 15 58.0' / [dms +N J2000] Target declination
OBJCTALT = ' 47.1032' / Nominal altitude of center of image
OBJCTAZ = '166.5738' / Nominal azimuth of center of image
OBJCTHA = ' -0.6099' / Nominal hour angle of center of image
SITELAT = '35 46 41' / Latitude of the imaging location
SITELONG = '139 59 27' / Longitude of the imaging location
JD = 2456854.0562499999 /Julian Date at start of exposure
JD-HELIO = 2456854.0621455642 /Heliocentric Julian Date at exposure midpoint
AIRMASS = 1.36435688526E+000 / Airmass (multiple of zenithal airmass)
FOCALLEN = 155.00000000000000 /Focal length of telescope in mm
APTDIA = 0.00000000000000000 /Aperture diameter of telescope in mm
APTAREA = 0.00000000000000000 /Aperture area of telescope in mm^2
SWCREATE = 'MaxIm DL Version 5.24 140707 36C42' /Name of software that created
the image
SBSTDVER = 'SBFITSEXT Version 1.0' /Version of SBFITSEXT standard in effect
HISTORY Dark subtraction (Simple Auto-dark)
CALSTAT = 'D '
PEDESTAL = -100 /Correction to add for zero-based ADU
TELESCOP = ' ' / Telescope name
INSTRUME = 'G4-9000, Id: 6046' / Detector instrument name
OBSERVER = ' ' / Observer name
NOTES = ' '
FLIPSTAT = ' '
SWOWNER = 'meineko' / Licensed owner of software
MIRATYPE = '32 bit real' / Mira pixel type
DATEMIRA = '2014-07-16T13:18:39.000' / UT date read into Mira
TIMEMIRA = '13:18:39.000' / UT time read into Mira
MIRAPROC = '000000000000001' /
DATEFITS = '2014-07-16T13:19:36.000' / UT date saved to FITS
TIMEFITS = '13:19:36.000' / UT time saved to FITS
INPUTFMT = 'FITS ' / Format of file from which image was read
SNAPSHOT = 4 /Number of images combined
MIDPOINT = '2014-07-15T13:23:31' /UT of midpoint of exposure
CSTRETCH = 'Medium ' / Initial display stretch mode
CBLACK = 1456 /Initial display black level in ADUs
CWHITE = 2618 /Initial display white level in ADUs
HISTORY File was processed by PinPoint 6.0.5 at 2014-08-03T06:05:19
DATE = '15/07/14' / [old format] UTC date of exposure start
TIME-OBS = '13:21:00' / [old format] UTC time of exposure start
UT = '13:21:00' / [old format] UTC time of exposure start
TIMESYS = 'UTC ' / Default time system
RADECSYS = 'FK5 ' / Equatorial coordinate system
RA = '18 51 04.00' / [hms J2000] Target right ascension
DEC = '-06 15 58.0' / [dms +N J2000] Target declination
FWHM = 2.35988337994E+000 / [pixels] Mean Full-Width-Half-Max of image star
ZMAG = 1.52550287744E+001 / Mag zero point for 1 sec exposure
EQUINOX = 2000.0 / Equatorial coordinates are J2000
EPOCH = 2000.0 / (incorrect but needed by old programs)
PA = 1.79626728834E+002 / [deg, 0-360 CCW] Position angle of plate
CTYPE1 = 'RA---TAN' / X-axis coordinate type
CRVAL1 = 2.82660376631E+002 / X-axis coordinate value
CRPIX1 = 1.52800000000E+003 / X-axis reference pixel
CDELT1 = 4.26293799390E-003 / [deg/pixel] X-axis plate scale
CROTA1 = 3.73271165578E-001 / [deg] Roll angle wrt X-axis
CTYPE2 = 'DEC--TAN' / Y-axis coordinate type
CRVAL2 = -6.02120089644E+000 / Y-axis coordinate value
CRPIX2 = 1.52800000000E+003 / Y-axis reference pixel
CDELT2 = 4.26412554281E-003 / [deg/pixel] Y-Axis Plate scale
CROTA2 = 3.73271165578E-001 / [deg] Roll angle wrt Y-axis
CD1_1 = 4.26284752879E-003 / Change in RA---TAN along X-Axis
CD1_2 = -2.77797748090E-005 / Change in RA---TAN along Y-Axis
CD2_1 = 2.77720382072E-005 / Change in DEC--TAN along X-Axis
CD2_2 = 4.26403505250E-003 / Change in DEC--TAN along Y-Axis
TR1_0 = 1.52799994020E+003 / [private] X-axis distortion coefficients
TR1_1 = 3.05600152040E+003
TR1_2 = -1.85732105244E-001
TR1_3 = -1.01800246649E+001
TR1_4 = 4.21480839734E+000
TR1_5 = -8.52452966124E-001
TR1_6 = -2.13450956567E+002
TR1_7 = -1.82842998954E-001
TR1_8 = -2.12040694905E+002
TR1_9 = 4.01225983947E-001
TR1_10 = 3.08828318322E-001
TR1_11 = -1.23059838544E+000
TR1_12 = 4.41848340544E+000
TR1_13 = -5.57792889459E+000
TR1_14 = -3.32156217441E+000
TR2_0 = 1.52800000117E+003 / [private] Y-axis distortion coefficients
TR2_1 = 4.38345136704E-003
TR2_2 = 3.05599843139E+003
TR2_3 = -2.87601869852E-001
TR2_4 = -8.59823277361E+000
TR2_5 = 4.69776858080E+000
TR2_6 = -1.46717453285E+000
TR2_7 = -2.11289889786E+002
TR2_8 = -1.45252980192E-001
TR2_9 = -2.13741742974E+002
TR2_10 = 3.83950704251E+000
TR2_11 = 4.22302076526E+000
TR2_12 = -1.68066053339E+000
TR2_13 = 4.17750036549E+000
TR2_14 = -4.96672334761E+000
HISTORY WCS added by PinPoint 6.0.5 at 2014-08-03T06:05:19
HISTORY Matched 331 stars from the Gray GSC-ACT Catalog
HISTORY Average residual was 2.47 arc-seconds
PLTSOLVD = T / Plate has been solved by PinPoint
HISTORY Image data was modified, written back to file.
TRx_xというのがそうだと思うのですが、でも、このKEYWORDは、DS9を始め、MIRAでも、sextractorでも、認識してくれないようです。
で、sextractorで使うなら、WCStoolsのimwcsを使うのが本道だろうと、Mhhさんから頂いたスクリプトを参考に、imwcsのパラメーターとかを憶えたのですが、カタログに、tycho2を指定するところで、catalog.datとindex.datが手に入らなくて積んでいます。
WCStoolsのサイトから張られている、perl scriptのlinkが切れています。
というわけで、catalog.datとindex.datをいただけませんか＞Mhhさん
