The likely membership of the planetary nebula Abell 8 ( PN G167.0–00.9 ) in the open cluster Bica 6 is confirmed by CCD spectra , UBV ( RI ) _ { C } photometry , and radial velocities for luminous cluster stars . The reddening , estimated distance , and radial velocity of the planetary nebula agree with parameters derived for Bica 6 of E _ { B - V } { ( mean ) } = 0.42 , d = 1.60 \pm 0.11 kpc , and V _ { R } = 57 \pm 1 km s ^ { -1 } , with a cluster age of 10 ^ { 9 } yr , a diagnostic blue hook , and a few blue stragglers , including a peculiar B1 Vnn star ( HDE 277593 ) that may be a post-AGB star . The results identify Bica 6 as a potential calibrator of the planetary nebula distance scale . The central star of the planetary nebula has a reddening of E _ { B - V } = 0.49 \pm 0.02 , with a possible circumnebular excess , and an estimated luminosity of M _ { V } = +7.44 \pm 0.16 . It is also an optical double in 2MASS images , with a likely progenitor according to evolutionary considerations being a late B-type dwarf of \sim 2.3 M _ { \sun } .