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We report the identification of a new, long period detached eclipsing binaryby the All-Sky Automated Survey for Supernovae (ASAS-SN). Combining V-bandphotometry from ASAS-SN, ASAS and KELT, we constructed a light curve spanning2006-2018. ASASSN-V J192543.72+402619.0 is an eccentric detached eclipsingbinary with an orbital period of $P\sim7.3$ yr, a minimum orbital eccentricityof $e_{min}\sim0.2$ and a primary eclipse lasting $\sim160$ d. We also detect asecondary eclipse that is $\sim 0.6$ mag shallower. Multi-band photometrysuggests that the more luminous component of the binary is an M-giant. Furtherphotometric and spectroscopic observations are encouraged.

ASAS-SN Identification of a Detached Eclipsing Binary System with a $\sim7.3$ Year Period