400d cluster survey

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FINDING CHART FOR   cl 1217+2255 RA, Dec (J2000) = 12:17:48.5 +22:55:16

flux = ( 3.00 ± 0.59 ) ×10−13 erg/s/cm2
z = 0.1397
Lx = 1.48e+43 erg/s



ROSAT Field, X=398.5, Y=198.4
Model fit
DSS II red 24' × 24' image
CCD R-band image

NED objects within 5'
SDSS redshifts within 10'


DS9 display