Fig. 1

Top: r′-band image of SN 2014bc
(left), pre-explosion image (middle), and the
difference between the two (right). SN 2014bc is located at
αJ2000 =
12:18:57.71, δJ2000 = + 47:18:11.3, projected
(≃135 pc, at 7.6 Mpc) from the nucleus of
NGC 4258. The position of the SN is marked by red dashes. Bottom:
Stacked rPS1 image of NGC 4258. All images
included in the stack were taken prior to 2014 Apr. 08. The 1′ × 1′ blue box delineates the region
shown in the upper panels.
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