Redshifts in the Century Survey region

The strip passes through the Corona Borealis supercluster and the outer region of the Coma cluster. Within the Century Survey region, we have measured 2410 redshifts that constitute four overlapping complete redshift surveys: (1) the original Century Survey of 1728 galaxies with Kron-Cousins (Kron, White, & Gascoigne, 1953ApJ...118..502K) R_ph_<=16.13 covering the entire strip (Geller et al., 1997AJ....114.2205G, hereafter OCS), (2) 507 galaxies with R_ph_<=16.4 in right ascension range 8h32min<=RA<=10h45min, equinox B1950.0, (hereafter DCS) (3) 1251 galaxies with absorption- and K-corrected R_CCDc_<=16.2 (where "c" indicates "corrected") covering the right ascension range 8.5h<=RA<=13.5h, equinox B1950.0 (Brown et al., 2001, Cat. <J/AJ/122/714>, hereafter RCS), and (4) 1255 galaxies with absorption- and K-corrected V_CCDc_<=16.7 also covering the right ascension range 8.5h<=RA<=13.5h, B1950.0 (Brown et al., 2001, Cat. <J/AJ/122/714>, hereafter VCS).

All these redshift samples are more than 98% complete to the specified magnitude limit. We derived samples 1 and 2 from scans of the POSS1 red (E) plates calibrated with CCD photometry. We derived samples 3 and 4 from deep V and R CCD images covering the entire region.