SIMPLE = T BITPIX = 16 NAXIS = 2 NAXIS1 = 721 NAXIS2 = 721 OBJECT = 'NGC 4258 ' FILTER = 'GC1 (4805/75)'/ 3 inch filter RA = '12:16:29.0' DEC = '+47:35:01.1' AIRMASS = 1.054104E+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 = '-01:03:40.1' / Hour Angle LST = ' 13:22:14.2' / Sidereal Time TIME = '06:19:09.3' FILENUM = 61 DECORDER= F BSCALE = 1.000000E+00 BZERO = 0.000000E+00 CRVAL1 = 1.841208E+02 CRVAL2 = 4.758361E+01 CRPIX1 = 3.590000E+02 CRPIX2 = 3.610000E+02 CDELT1 = -3.305555E-04 CDELT2 = 3.305555E-04 CTYPE1 = 'RA---TAN ' CTYPE2 = 'DEC--TAN ' DATAMAX = 1.664100E+04 DATAMIN = 1.000000E+02 CCDNUM = 1 EXPOSURE= 6.000000E+01 FILENAME= 'n4258_pi.fits' FILTER1 = 'i ' SKY = 9.985125E+02 SKYSIG = 2.209028E+01 XOFFSET = 49 YOFFSET = 46 G_CENT_X= 358 G_CENT_Y= 360 SATURAT = 2 DNAT0_ST= 5.042682E+10 DNAT0_BV= 4.927807E+10 B_RC3 = 9.100000E+00 B-V_RC3 = 6.900000E-01 PSF_FWHM= 2.364961E+00 PA_RC3 = 1.500000E+02 BOA_RC3 = 4.100000E-01 SIZE_RC3= 2.270000E+00 VELO_RC3= 4.500883E+02 TYPE_RC3= '.SXS4.. ' DATE-OBS= '05/05/91 ' END