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We present photometric and spectroscopic observations of SN 2013fc, a brighttype II supernova (SN) in a circumnuclear star-forming ring in the luminousinfrared galaxy ESO 154-G010, observed as part of the Public ESO SpectroscopicSurvey of Transient Objects (PESSTO). SN 2013fc is both photometrically andspectroscopically similar to the well-studied type IIn SN 1998S and to thebright type II-L SN 1979C. It exhibits an initial linear decline, followed by ashort plateau phase and a tail phase with a decline too fast for $^{56}$Codecay with full gamma-ray trapping. Initially the spectrum was blue andfeatureless. Later on, a strong broad ($\sim 8000$ km s$^{-1}$) H $\alpha$emission profile became prominent. We apply a Starlight stellar populationmodel fit to the SN location (observed when the SN had faded) to estimate ahigh extinction of $A_V = 2.9 \pm 0.2$ mag and an age of $10_{-2}^{+3}$ Myr forthe underlying cluster. We compare the SN to SNe 1998S and 1979C and discussits possible progenitor star considering the similarities to these events. Witha peak brightness of $B = -20.46 \pm 0.21$ mag, SN 2013fc is 0.9 mag brighterthan SN 1998S and of comparable brightness to SN 1979C. We suggest that SN2013fc was consistent with a massive red supergiant (RSG) progenitor. Recentmass loss probably due to a strong RSG wind created the circumstellar matterilluminated through its interaction with the SN ejecta. We also observe anear-infrared excess, possibly due to newly condensed dust.

Supernova 2013fc in a circumnuclear ring of a luminous infrared galaxy: the big brother of SN 1998S