A supernova distance to the anchor galaxy NGC 4258
  The fortuitous occurrence of a type II-Plateau (IIP) supernova, SN 2014bc, in
a galaxy for which distance estimates from a number of primary distance
indicators are available provides a means with which to cross-calibrate the
standardised candle method (SCM) for type IIP SNe. By applying calibrations
from the literature we find distance estimates in line with the most precise
measurement to NGC 4258 based on the Keplerian motion of masers
(7.6$\pm$0.23\,Mpc), albeit with significant scatter. We provide an alternative
local SCM calibration by only considering type IIP SNe that have occurred in
galaxies for which a Cepheid distance estimate is available. We find a
considerable reduction in scatter ($\sigma_I = 0.16$\, mag.), but note that the
current sample size is limited. Applying this calibration, we estimate a
distance to NGC 4258 of $7.08\pm0.86$ Mpc.
