SIMPLE = T BITPIX = 16 NAXIS = 2 NAXIS1 = 721 NAXIS2 = 721 OBJECT = 'NGC 4258 ' FILTER = 'GC1 (4805/75)'/ 3 inch filter RA = '12:16:29.10' DEC = '+47:35:00.7' AIRMASS = 1.052501E+00 HISTORY 'Flat-fielded, star-subtracted, calibrated, header-corrected ' TELESCOP= 'Palomar 1.5' INSTRUME= 'Wide field' OBSERVER= 'J. E. Gunn' AUTHOR = 'Z. Frei et al. ' REFERENC= 'AJ, 1995, in press ' DATE = '12/07/95 ' EQUINOX = 1.950000E+03 BUNIT = 'COUNTS ' HA = '-01:01:29.7' / Hour Angle LST = ' 13:20:03.8' / Sidereal Time TIME = '06:16:59.4' FILENUM = 60 DECORDER= F BSCALE = 1.000000E+00 BZERO = 0.000000E+00 CRVAL1 = 1.841208E+02 CRVAL2 = 4.758333E+01 CRPIX1 = 3.590000E+02 CRPIX2 = 3.600000E+02 CDELT1 = -3.305555E-04 CDELT2 = 3.305555E-04 CTYPE1 = 'RA---TAN ' CTYPE2 = 'DEC--TAN ' DATAMAX = 1.566800E+04 DATAMIN = 3.500000E+01 CCDNUM = 1 EXPOSURE= 6.000000E+01 FILENAME= 'n4258_pr.fits' FILTER1 = 'r5 ' SKY = 5.206119E+02 SKYSIG = 1.661930E+01 XOFFSET = 51 YOFFSET = 46 G_CENT_X= 358 G_CENT_Y= 359 SATURAT = 2 DNAT0_ST= 7.224424E+10 DNAT0_BV= 6.679484E+10 B_RC3 = 9.100000E+00 B-V_RC3 = 6.900000E-01 PSF_FWHM= 1.910237E+00 PA_RC3 = 1.500000E+02 BOA_RC3 = 4.100000E-01 SIZE_RC3= 2.270000E+00 VELO_RC3= 4.500869E+02 TYPE_RC3= '.SXS4.. ' DATE-OBS= '05/05/91 ' END